feat(ai): 支持多语言AI分析响应并优化药品识别流程

- 饮食分析与药品分析服务新增多语言支持(zh-CN/en-US)，根据用户偏好动态调整 Prompt 和返回信息 - 重构药品识别流程，利用 GLM-4.5v 模型将多阶段分析合并为单次全量分析，提升响应速度 - 增加用户语言获取逻辑，并在异步任务状态更新中支持本地化文案 - 移除废弃的药品分析 V1 接口，升级底层模型配置
2025-11-28 16:02:16 +08:00
parent 43f378d44d
commit ff2dfd5bb3
10 changed files with 335 additions and 396 deletions
--- a/.kilocode/mcp.json
+++ b/.kilocode/mcp.json
@@ -1,14 +1 @@
-{
-  "mcpServers": {
-    "context7": {
-      "command": "npx",
-      "args": [
-        "-y",
-        "@upstash/context7-mcp"
-      ],
-      "env": {
-        "DEFAULT_MINIMUM_TOKENS": ""
-      }
-    }
-  }
-}
+{"mcpServers":{"context7":{"command":"npx","args":["-y","@upstash/context7-mcp"],"env":{"DEFAULT_MINIMUM_TOKENS":""},"alwaysAllow":["get-library-docs","resolve-library-id"]}}}
--- a/src/ai-coach/ai-coach.controller.ts
+++ b/src/ai-coach/ai-coach.controller.ts
@@ -175,7 +175,8 @@ export class AiCoachController {
  ): Promise<FoodRecognitionResponseDto> {
    this.logger.log(`Food recognition request from user: ${user.sub}, images: ${body.imageUrls?.length || 0}`);

-    const result = await this.dietAnalysisService.recognizeFoodForConfirmation(body.imageUrls);
+    const language = await this.usersService.getUserLanguage(user.sub);
+    const result = await this.dietAnalysisService.recognizeFoodForConfirmation(body.imageUrls, language);

    // 转换为DTO格式
    const response: FoodRecognitionResponseDto = {
@@ -220,7 +221,8 @@ export class AiCoachController {
  ): Promise<FoodRecognitionResponseDto> {
    this.logger.log(`Text food analysis request from user: ${user.sub}, text: "${body.text}"`);

-    const result = await this.dietAnalysisService.analyzeTextFoodForConfirmation(body.text);
+    const language = await this.usersService.getUserLanguage(user.sub);
+    const result = await this.dietAnalysisService.analyzeTextFoodForConfirmation(body.text, language);

    // 转换为DTO格式
    const response: FoodRecognitionResponseDto = {
--- a/src/ai-coach/ai-coach.service.ts
+++ b/src/ai-coach/ai-coach.service.ts
@@ -413,7 +413,8 @@ export class AiCoachService {
  ): Promise<Readable | { type: 'structured'; data: any }> {
    if (params.imageUrls) {
      // 处理图片饮食记录
-      const recognitionResult = await this.dietAnalysisService.recognizeFoodForConfirmation(params.imageUrls);
+      const language = await this.usersService.getUserLanguage(params.userId);
+      const recognitionResult = await this.dietAnalysisService.recognizeFoodForConfirmation(params.imageUrls, language);

      if (recognitionResult.items.length > 0) {
        const choices = recognitionResult.items.map(item => ({
@@ -467,6 +468,8 @@ export class AiCoachService {
      }
    } else {
      // 处理文本饮食记录
+      // const language = await this.usersService.getUserLanguage(params.userId);
+      // TODO: analyzeDietFromText 也需要支持多语言
      const textAnalysisResult = await this.dietAnalysisService.analyzeDietFromText(commandResult.cleanText);

      if (textAnalysisResult.shouldRecord && textAnalysisResult.extractedData) {
--- a/src/ai-coach/services/diet-analysis.service.ts
+++ b/src/ai-coach/services/diet-analysis.service.ts
@@ -5,6 +5,53 @@ import { DietRecordsService } from '../../diet-records/diet-records.service';
 import { CreateDietRecordDto } from '../../users/dto/diet-record.dto';
 import { MealType, DietRecordSource } from '../../users/models/user-diet-history.model';

+const MESSAGES = {
+  'zh-CN': {
+    recognitionFailed: '食物识别失败，请稍后重试',
+    serviceUnavailable: '服务暂时不可用，请稍后重试',
+    analysisFailed: '图片分析失败，请稍后重试',
+    textAnalysisFailed: '文本饮食分析失败，请稍后重试',
+    textFoodAnalysisFailed: '文本食物分析失败，请稍后重试',
+    noFoodInText: '未能从文本中识别到具体食物信息',
+    provideMoreDetails: '请描述更具体的食物信息，如"吃了一碗米饭"、"喝了一杯牛奶"等',
+    basedOnDescription: (text: string) => `基于您的描述"${text}"，识别出以下食物`,
+    textAnalysisParseFailed: '文本分析失败：无法解析识别结果',
+    textAnalysisFailedRetry: '文本分析失败，请重新描述您吃的食物',
+    recognizedCount: (text: string, count: number) => `基于您的描述"${text}"，识别出 ${count} 种食物`,
+    imageAnalysisFailed: '图片分析失败：无法解析识别结果',
+    uploadImageRetry: '图片分析失败，请重新上传图片',
+    noFoodDetected: '图片中未检测到食物',
+    imageBlurred: '图片模糊，无法准确识别食物',
+    foodRecognized: '已识别图片中的食物',
+    uploadFoodImage: '图片中未检测到食物，请上传包含食物的图片',
+    parseError: '图片分析失败：无法解析分析结果',
+    noAnalysisDesc: '未提供分析说明',
+    unknownFood: '未知食物'
+  },
+  'en-US': {
+    recognitionFailed: 'Food recognition failed, please try again later',
+    serviceUnavailable: 'Service temporarily unavailable, please try again later',
+    analysisFailed: 'Image analysis failed, please try again later',
+    textAnalysisFailed: 'Text diet analysis failed, please try again later',
+    textFoodAnalysisFailed: 'Text food analysis failed, please try again later',
+    noFoodInText: 'No specific food information identified from the text',
+    provideMoreDetails: 'Please describe more specific food information, e.g., "ate a bowl of rice", "drank a glass of milk"',
+    basedOnDescription: (text: string) => `Based on your description "${text}", the following foods were identified`,
+    textAnalysisParseFailed: 'Text analysis failed: Unable to parse recognition result',
+    textAnalysisFailedRetry: 'Text analysis failed, please describe your food again',
+    recognizedCount: (text: string, count: number) => `Based on your description "${text}", ${count} foods were identified`,
+    imageAnalysisFailed: 'Image analysis failed: Unable to parse recognition result',
+    uploadImageRetry: 'Image analysis failed, please upload image again',
+    noFoodDetected: 'No food detected in the image',
+    imageBlurred: 'Image is blurred, unable to accurately recognize food',
+    foodRecognized: 'Food recognized in the image',
+    uploadFoodImage: 'No food detected in the image, please upload an image containing food',
+    parseError: 'Image analysis failed: Unable to parse analysis result',
+    noAnalysisDesc: 'No analysis description provided',
+    unknownFood: 'Unknown Food'
+  }
+};
+
 /**
 * 饮食分析结果接口
 */
@@ -88,7 +135,7 @@ export class DietAnalysisService {
      });
      
      this.model = this.configService.get<string>('GLM_MODEL') || 'glm-4-flash';
-      this.visionModel = this.configService.get<string>('GLM_VISION_MODEL') || 'glm-4v-plus';
+      this.visionModel = 'glm-4v-flash'
    } else {
      // DashScope Configuration (default)
      const dashScopeApiKey = this.configService.get<string>('DASHSCOPE_API_KEY') || 'sk-e3ff4494c2f1463a8910d5b3d05d3143';
@@ -178,29 +225,31 @@ export class DietAnalysisService {
  /**
   * 食物识别用于用户确认 - 新的确认流程
   * @param imageUrls 图片URL数组
+   * @param language 语言代码，默认 zh-CN
   * @returns 食物识别确认结果
   */
-  async recognizeFoodForConfirmation(imageUrls: string[]): Promise<FoodRecognitionResult> {
+  async recognizeFoodForConfirmation(imageUrls: string[], language: string = 'zh-CN'): Promise<FoodRecognitionResult> {
    try {
      const currentHour = new Date().getHours();
      const suggestedMealType = this.getSuggestedMealType(currentHour);

-      const prompt = this.buildFoodRecognitionPrompt(suggestedMealType);
+      const prompt = this.buildFoodRecognitionPrompt(suggestedMealType, language);

      const completion = await this.makeVisionApiCall(prompt, imageUrls);

      const rawResult = completion.choices?.[0]?.message?.content || '{}';
      this.logger.log(`Food recognition result: ${rawResult}`);

-      return this.parseRecognitionResult(rawResult, suggestedMealType);
+      return this.parseRecognitionResult(rawResult, suggestedMealType, language);
    } catch (error) {
      this.logger.error(`食物识别失败: ${error instanceof Error ? error.message : String(error)}`);
+      const msgs = this.getMessages(language);
      return {
        items: [],
-        analysisText: '食物识别失败，请稍后重试',
+        analysisText: msgs.recognitionFailed,
        confidence: 0,
        isFoodDetected: false,
-        nonFoodMessage: '服务暂时不可用，请稍后重试'
+        nonFoodMessage: msgs.serviceUnavailable
      };
    }
  }
@@ -264,9 +313,10 @@ export class DietAnalysisService {
  /**
   * 分析文本中的食物用于用户确认 - 与图片识别接口保持数据结构一致
   * @param userText 用户输入的文本描述
+   * @param language 语言代码，默认 zh-CN
   * @returns 食物识别确认结果
   */
-  async analyzeTextFoodForConfirmation(userText: string): Promise<FoodRecognitionResult> {
+  async analyzeTextFoodForConfirmation(userText: string, language: string = 'zh-CN'): Promise<FoodRecognitionResult> {
    try {
      this.logger.log(`Text food analysis request: ${userText}`);

@@ -274,22 +324,23 @@ export class DietAnalysisService {
      const suggestedMealType = this.getSuggestedMealType(currentHour);

      // 使用专门的多食物文本分析 prompt
-      const prompt = this.buildMultiFoodTextAnalysisPrompt(suggestedMealType);
+      const prompt = this.buildMultiFoodTextAnalysisPrompt(suggestedMealType, language);
      const completion = await this.makeTextApiCall(prompt, userText);

      const rawResult = completion.choices?.[0]?.message?.content || '{}';
      this.logger.log(`Multi-food text analysis result: ${rawResult}`);

      // 直接解析为多食物结构
-      return this.parseMultiFoodTextResult(rawResult, suggestedMealType, userText);
+      return this.parseMultiFoodTextResult(rawResult, suggestedMealType, userText, language);
    } catch (error) {
      this.logger.error(`文本食物分析失败: ${error instanceof Error ? error.message : String(error)}`);
+      const msgs = this.getMessages(language);
      return {
        items: [],
-        analysisText: '文本食物分析失败，请稍后重试',
+        analysisText: msgs.textFoodAnalysisFailed,
        confidence: 0,
        isFoodDetected: false,
-        nonFoodMessage: '服务暂时不可用，请稍后重试'
+        nonFoodMessage: msgs.serviceUnavailable
      };
    }
  }
@@ -461,9 +512,10 @@ export class DietAnalysisService {
  /**
   * 构建食物识别提示（用于确认流程）
   * @param suggestedMealType 建议的餐次类型
+   * @param language 语言代码
   * @returns 提示文本
   */
-  private buildFoodRecognitionPrompt(suggestedMealType: MealType): string {
+  private buildFoodRecognitionPrompt(suggestedMealType: MealType, language: string): string {
    return `作为专业营养分析师，请分析这张图片并判断是否包含食物。

 当前时间建议餐次：${suggestedMealType}
@@ -475,17 +527,17 @@ export class DietAnalysisService {
 返回以下格式的JSON：
 {
  "confidence": number,        // 整体识别置信度 0-100
-  "analysisText": string,      // 简短的识别说明文字
+  "analysisText": string,      // 简短的识别说明文字，请使用${language}语言
  "isFoodDetected": boolean,   // 是否检测到食物
-  "nonFoodMessage": string,    // 当isFoodDetected为false时的提示信息
+  "nonFoodMessage": string,    // 当isFoodDetected为false时的提示信息，请使用${language}语言
  "recognizedItems": [         // 识别的食物列表（如果是食物才有内容）
    {
      "id": string,               // 唯一标识符
-      "foodName": string,         // 食物名称
-      "portion": string,          // 份量描述（如"1碗"、"150g"等）
+      "foodName": string,         // 食物名称，请使用${language}语言
+      "portion": string,          // 份量描述，请使用${language}语言（如"1碗"、"150g"等）
      "calories": number,         // 估算热量
      "mealType": "${suggestedMealType}",  // 餐次类型
-      "label": string,            // 显示给用户的完整选项文本（如"一条鱼 200卡"）
+      "label": string,            // 显示给用户的完整选项文本，请使用${language}语言（如"一条鱼 200卡"）
      "nutritionData": {
        "proteinGrams": number,   // 蛋白质
        "carbohydrateGrams": number, // 碳水化合物
@@ -515,7 +567,11 @@ export class DietAnalysisService {

 3. **模糊情况：**
   - 如果图片模糊但能看出是食物相关，设置 isFoodDetected: true，但返回空的recognizedItems数组
-   - analysisText 说明"图片模糊，无法准确识别食物"`;
+   - analysisText 说明"图片模糊，无法准确识别食物"
+
+**重要提示：**
+请使用 ${language} 语言返回所有文本内容（包括label, analysisText, nonFoodMessage, foodName, portion等）。
+Please respond in ${language}.`;
  }

  /**
@@ -605,9 +661,10 @@ export class DietAnalysisService {
  /**
   * 构建多食物文本分析提示 - 支持识别多种食物
   * @param suggestedMealType 建议的餐次类型
+   * @param language 语言代码
   * @returns 提示文本
   */
-  private buildMultiFoodTextAnalysisPrompt(suggestedMealType: MealType): string {
+  private buildMultiFoodTextAnalysisPrompt(suggestedMealType: MealType, language: string): string {
    return `作为专业营养分析师，请分析用户描述的饮食内容，支持识别多种食物。

 当前时间建议餐次：${suggestedMealType}
@@ -615,17 +672,17 @@ export class DietAnalysisService {
 请返回以下格式的JSON（不要包含其他文本）：
 {
  "confidence": number,        // 整体识别置信度 0-100
-  "analysisText": string,      // 简短的识别说明文字
+  "analysisText": string,      // 简短的识别说明文字，请使用${language}语言
  "isFoodDetected": boolean,   // 是否检测到食物
-  "nonFoodMessage": string,    // 当isFoodDetected为false时的提示信息
+  "nonFoodMessage": string,    // 当isFoodDetected为false时的提示信息，请使用${language}语言
  "recognizedItems": [         // 识别的食物列表
    {
      "id": string,               // 唯一标识符（使用 food_1, food_2 等）
-      "foodName": string,         // 食物名称（简洁）
-      "portion": string,          // 份量描述（如"1碗"、"1份"等）
+      "foodName": string,         // 食物名称（简洁），请使用${language}语言
+      "portion": string,          // 份量描述（如"1碗"、"1份"等），请使用${language}语言
      "calories": number,         // 估算热量
      "mealType": "${suggestedMealType}",  // 餐次类型
-      "label": string,            // 显示给用户的完整选项文本（如"一碗米饭 280卡"）
+      "label": string,            // 显示给用户的完整选项文本（如"一碗米饭 280卡"），请使用${language}语言
      "nutritionData": {
        "proteinGrams": number,   // 蛋白质
        "carbohydrateGrams": number, // 碳水化合物
@@ -660,7 +717,11 @@ export class DietAnalysisService {
 - "今天中午吃了一碗米饭，一份麻辣香锅" → 识别为2个选项
 - "早餐吃了燕麦粥加香蕉和牛奶" → 可识别为1个复合选项或3个独立选项
 - "晚上吃了牛肉面" → 识别为1个选项（面条+牛肉的复合菜品）
- "喝了水" → isFoodDetected: false（水不是营养食物）`;
+- "喝了水" → isFoodDetected: false（水不是营养食物）
+
+**重要提示：**
+请使用 ${language} 语言返回所有文本内容（包括label, analysisText, nonFoodMessage, foodName, portion等）。
+Please respond in ${language}.`;
  }

  /**
@@ -716,9 +777,11 @@ export class DietAnalysisService {
   * @param rawResult 原始结果字符串
   * @param suggestedMealType 建议的餐次类型
   * @param originalText 原始用户文本
+   * @param language 语言代码
   * @returns 解析后的识别结果
   */
-  private parseMultiFoodTextResult(rawResult: string, suggestedMealType: MealType, originalText: string): FoodRecognitionResult {
+  private parseMultiFoodTextResult(rawResult: string, suggestedMealType: MealType, originalText: string, language: string): FoodRecognitionResult {
+    const msgs = this.getMessages(language);
    let parsedResult: any;
    try {
      parsedResult = JSON.parse(rawResult);
@@ -726,10 +789,10 @@ export class DietAnalysisService {
      this.logger.error(`多食物文本分析JSON解析失败: ${parseError}`);
      return {
        items: [],
-        analysisText: '文本分析失败：无法解析识别结果',
+        analysisText: msgs.textAnalysisParseFailed,
        confidence: 0,
        isFoodDetected: false,
-        nonFoodMessage: '文本分析失败，请重新描述您吃的食物'
+        nonFoodMessage: msgs.textAnalysisFailedRetry
      };
    }

@@ -764,11 +827,11 @@ export class DietAnalysisService {
    // 根据是否识别到食物设置不同的分析文本
    let analysisText = parsedResult.analysisText || '';
    if (!isFoodDetected) {
-      analysisText = analysisText || '文本中未检测到具体食物信息';
+      analysisText = analysisText || msgs.noFoodInText;
    } else if (recognizedItems.length === 0) {
-      analysisText = analysisText || '无法准确解析食物信息';
+      analysisText = analysisText || msgs.noFoodInText;
    } else {
-      analysisText = analysisText || `基于您的描述"${originalText}"，识别出 ${recognizedItems.length} 种食物`;
+      analysisText = analysisText || msgs.recognizedCount(originalText, recognizedItems.length);
    }

    return {
@@ -776,7 +839,7 @@ export class DietAnalysisService {
      analysisText,
      confidence: Math.min(100, Math.max(0, parsedResult.confidence || 0)),
      isFoodDetected,
-      nonFoodMessage: !isFoodDetected ? (nonFoodMessage || '请描述更具体的食物信息，如"吃了一碗米饭"、"喝了一杯牛奶"等') : undefined
+      nonFoodMessage: !isFoodDetected ? (nonFoodMessage || msgs.provideMoreDetails) : undefined
    };
  }

@@ -784,9 +847,11 @@ export class DietAnalysisService {
   * 解析食物识别结果
   * @param rawResult 原始结果字符串
   * @param suggestedMealType 建议的餐次类型
+   * @param language 语言代码
   * @returns 解析后的识别结果
   */
-  private parseRecognitionResult(rawResult: string, suggestedMealType: MealType): FoodRecognitionResult {
+  private parseRecognitionResult(rawResult: string, suggestedMealType: MealType, language: string): FoodRecognitionResult {
+    const msgs = this.getMessages(language);
    let parsedResult: any;
    try {
      parsedResult = JSON.parse(rawResult);
@@ -794,10 +859,10 @@ export class DietAnalysisService {
      this.logger.error(`食物识别JSON解析失败: ${parseError}`);
      return {
        items: [],
-        analysisText: '图片分析失败：无法解析识别结果',
+        analysisText: msgs.imageAnalysisFailed,
        confidence: 0,
        isFoodDetected: false,
-        nonFoodMessage: '图片分析失败，请重新上传图片'
+        nonFoodMessage: msgs.uploadImageRetry
      };
    }

@@ -832,11 +897,11 @@ export class DietAnalysisService {
    // 根据是否识别到食物设置不同的分析文本
    let analysisText = parsedResult.analysisText || '';
    if (!isFoodDetected) {
-      analysisText = analysisText || '图片中未检测到食物';
+      analysisText = analysisText || msgs.noFoodDetected;
    } else if (recognizedItems.length === 0) {
-      analysisText = analysisText || '图片模糊，无法准确识别食物';
+      analysisText = analysisText || msgs.imageBlurred;
    } else {
-      analysisText = analysisText || '已识别图片中的食物';
+      analysisText = analysisText || msgs.foodRecognized;
    }

    return {
@@ -844,7 +909,7 @@ export class DietAnalysisService {
      analysisText,
      confidence: Math.min(100, Math.max(0, parsedResult.confidence || 0)),
      isFoodDetected,
-      nonFoodMessage: !isFoodDetected ? (nonFoodMessage || '图片中未检测到食物，请上传包含食物的图片') : undefined
+      nonFoodMessage: !isFoodDetected ? (nonFoodMessage || msgs.uploadFoodImage) : undefined
    };
  }

@@ -1025,4 +1090,15 @@ export class DietAnalysisService {
    if (isNaN(num)) return undefined;
    return Math.max(min, Math.min(max, num));
  }
+
+  /**
+   * 获取多语言消息
+   */
+  private getMessages(language: string) {
+    let langCode = 'zh-CN';
+    if (language.toLowerCase().startsWith('en')) {
+      langCode = 'en-US';
+    }
+    return MESSAGES[langCode] || MESSAGES['zh-CN'];
+  }
 }
--- a/src/diet-records/diet-records.controller.ts
+++ b/src/diet-records/diet-records.controller.ts
@@ -144,6 +144,7 @@ export class DietRecordsController {
  ): Promise<FoodRecognitionToDietRecordsResponseDto> {
    this.logger.log(`识别食物转饮食记录 - 用户ID: ${user.sub}, 图片URL: ${requestDto.imageUrl}`);
    return this.dietRecordsService.recognizeFoodToDietRecords(
+      user.sub,
      requestDto.imageUrl,
      requestDto.mealType
    );
@@ -164,6 +165,7 @@ export class DietRecordsController {
  ): Promise<FoodRecognitionResponseDto> {
    this.logger.log(`识别食物 - 用户ID: ${user.sub}, 图片URL: ${requestDto.imageUrl}`);
    return this.dietRecordsService.recognizeFood(
+      user.sub,
      requestDto.imageUrl,
      requestDto.mealType
    );
--- a/src/diet-records/diet-records.service.ts
+++ b/src/diet-records/diet-records.service.ts
@@ -8,6 +8,7 @@ import { CreateDietRecordDto, UpdateDietRecordDto, GetDietHistoryQueryDto, DietR
 import { DietRecordSource, MealType } from '../users/models/user-diet-history.model';
 import { ResponseCode } from '../base.dto';
 import { DietAnalysisService } from '../ai-coach/services/diet-analysis.service';
+import { UsersService } from '../users/users.service';

@Injectable()
 export class DietRecordsService {
@@ -21,6 +22,7 @@ export class DietRecordsService {
    private readonly sequelize: Sequelize,
    @Inject(forwardRef(() => DietAnalysisService))
    private readonly dietAnalysisService: DietAnalysisService,
+    private readonly usersService: UsersService,
  ) { }

  /**
@@ -296,14 +298,17 @@ export class DietRecordsService {
   * @returns 食物识别结果转换为饮食记录格式
   */
  async recognizeFoodToDietRecords(
+    userId: string,
    imageUrl: string,
    suggestedMealType?: MealType
  ): Promise<FoodRecognitionToDietRecordsResponseDto> {
    try {
-      this.logger.log(`recognizeFoodToDietRecords - imageUrl: ${imageUrl}, suggestedMealType: ${suggestedMealType}`);
+      this.logger.log(`recognizeFoodToDietRecords - userId: ${userId}, imageUrl: ${imageUrl}, suggestedMealType: ${suggestedMealType}`);
+
+      const language = await this.usersService.getUserLanguage(userId);

      // 调用 DietAnalysisService 进行食物识别
-      const recognitionResult = await this.dietAnalysisService.recognizeFoodForConfirmation([imageUrl]);
+      const recognitionResult = await this.dietAnalysisService.recognizeFoodForConfirmation([imageUrl], language);

      // 将识别结果转换为 CreateDietRecordDto 格式
      const dietRecords: CreateDietRecordDto[] = recognitionResult.items.map(item => ({
@@ -344,14 +349,17 @@ export class DietRecordsService {
   * @returns 食物识别结果
   */
  async recognizeFood(
+    userId: string,
    imageUrl: string,
    suggestedMealType?: MealType
  ): Promise<FoodRecognitionResponseDto> {
    try {
-      this.logger.log(`recognizeFood - imageUrl: ${imageUrl}, suggestedMealType: ${suggestedMealType}`);
+      this.logger.log(`recognizeFood - userId: ${userId}, imageUrl: ${imageUrl}, suggestedMealType: ${suggestedMealType}`);
+
+      const language = await this.usersService.getUserLanguage(userId);

      // 调用 DietAnalysisService 进行食物识别
-      const recognitionResult = await this.dietAnalysisService.recognizeFoodForConfirmation([imageUrl]);
+      const recognitionResult = await this.dietAnalysisService.recognizeFoodForConfirmation([imageUrl], language);

      // 如果指定了建议的餐次类型，更新所有识别项的餐次类型
      if (suggestedMealType) {
--- a/src/medications/medications.controller.ts
+++ b/src/medications/medications.controller.ts
@@ -8,11 +8,9 @@ import {
  Param,
  Query,
  UseGuards,
-  Res,
  Logger,
 } from '@nestjs/common';
 import { ApiTags, ApiOperation, ApiResponse } from '@nestjs/swagger';
-import { Response } from 'express';
 import { MedicationsService } from './medications.service';
 import { CreateMedicationDto } from './dto/create-medication.dto';
 import { UpdateMedicationDto } from './dto/update-medication.dto';
@@ -156,88 +154,6 @@ export class MedicationsController {
    return ApiResponseDto.success(medication, '激活成功');
  }

-  @Post(':id/ai-analysis')
-  @ApiOperation({
-    summary: '获取药品AI分析',
-    description: '使用大模型分析药品信息，提供专业的用药指导、注意事项和健康建议。支持视觉识别药品图片。返回Server-Sent Events流式响应。'
-  })
-  @ApiResponse({
-    status: 200,
-    description: '返回流式文本分析结果',
-    content: {
-      'text/event-stream': {
-        schema: {
-          type: 'string',
-          example: '药品分析内容...'
-        }
-      }
-    }
-  })
-  @ApiResponse({
-    status: 403,
-    description: '免费使用次数已用完'
-  })
-  async getAiAnalysis(
-    @CurrentUser() user: any,
-    @Param('id') id: string,
-    @Res() res: Response,
-  ) {
-    try {
-      // 检查用户免费使用次数
-      const userUsageCount = await this.usersService.getUserUsageCount(user.sub);
-
-      // 如果用户不是VIP且免费次数不足，返回错误
-      if (userUsageCount <= 0) {
-        this.logger.warn(`药品AI分析失败 - 用户ID: ${user.sub}, 免费次数不足`);
-        res.status(403).json(
-          ApiResponseDto.error('免费使用次数已用完，请开通会员获取更多使用次数'),
-        );
-        return;
-      }
-
-      // 设置SSE响应头
-      res.setHeader('Content-Type', 'text/event-stream');
-      res.setHeader('Cache-Control', 'no-cache');
-      res.setHeader('Connection', 'keep-alive');
-      res.setHeader('X-Accel-Buffering', 'no'); // 禁用nginx缓冲
-
-      // 获取分析流
-      const stream = await this.analysisService.analyzeMedication(id, user.sub);
-
-      // 分析成功后扣减用户免费使用次数
-      try {
-        await this.usersService.deductUserUsageCount(user.sub, 1);
-        this.logger.log(`药品AI分析成功，已扣减用户免费次数 - 用户ID: ${user.sub}, 剩余次数: ${userUsageCount - 1}`);
-      } catch (deductError) {
-        this.logger.error(`扣减用户免费次数失败 - 用户ID: ${user.sub}, 错误: ${deductError instanceof Error ? deductError.message : String(deductError)}`);
-        // 不影响主流程，继续返回分析结果
-      }
-
-      // 将流式数据写入响应
-      stream.on('data', (chunk: Buffer) => {
-        res.write(chunk.toString());
-      });
-
-      stream.on('end', () => {
-        res.end();
-      });
-
-      stream.on('error', (error) => {
-        res.status(500).json(
-          ApiResponseDto.error(
-            error instanceof Error ? error.message : '分析过程中发生错误',
-          ),
-        );
-      });
-    } catch (error) {
-      res.status(500).json(
-        ApiResponseDto.error(
-          error instanceof Error ? error.message : '药品分析失败',
-        ),
-      );
-    }
-  }
-
  @Post(':id/ai-analysis/v2')
  @ApiOperation({
    summary: '获取药品AI分析 (V2)',
--- a/src/medications/services/medication-analysis.service.ts
+++ b/src/medications/services/medication-analysis.service.ts
@@ -3,10 +3,18 @@ import { ConfigService } from '@nestjs/config';
 import { InjectModel } from '@nestjs/sequelize';
 import { OpenAI } from 'openai';
 import { Readable } from 'stream';
+import { UsersService } from '../../users/users.service';
 import { MedicationsService } from '../medications.service';
 import { Medication } from '../models/medication.model';
 import { AiAnalysisResultDto } from '../dto/ai-analysis-result.dto';

+interface LanguageConfig {
+  label: string;
+  analysisInstruction: string;
+  jsonInstruction: string;
+  unableToIdentifyMessage: string;
+}
+
 /**
 * 药品AI分析服务
 * 使用 GLM-4.5V 大模型分析药品信息，提供专业的用药指导和健康建议
@@ -21,6 +29,7 @@ export class MedicationAnalysisService {
  constructor(
    private readonly configService: ConfigService,
    private readonly medicationsService: MedicationsService,
+    private readonly usersService: UsersService,
    @InjectModel(Medication)
    private readonly medicationModel: typeof Medication,
  ) {
@@ -33,8 +42,8 @@ export class MedicationAnalysisService {
      baseURL: glmBaseURL,
    });
    
-    this.model = this.configService.get<string>('GLM_MODEL') || 'glm-4-flash';
-    this.visionModel = this.configService.get<string>('GLM_VISION_MODEL') || 'glm-4v-plus';
+    this.model = this.configService.get<string>('GLM_MODEL') || 'glm-4.6';
+    this.visionModel = this.configService.get<string>('GLM_VISION_MODEL') || 'glm-4.5v';
  }

  /**
@@ -48,10 +57,11 @@ export class MedicationAnalysisService {
    try {
      // 1. 获取药品信息
      const medication = await this.medicationsService.findOne(medicationId, userId);
+      const languageConfig = await this.getUserLanguageConfig(userId);
      
      this.logger.log(`获取到药品信息: ${JSON.stringify(medication, null, 2)}`)
      // 2. 构建专业医药分析提示
-      const prompt = this.buildMedicationAnalysisPrompt(medication);
+      const prompt = this.buildMedicationAnalysisPrompt(medication, languageConfig);
      
      // 3. 调用AI模型进行分析
      if (medication.photoUrl) {
@@ -78,10 +88,11 @@ export class MedicationAnalysisService {
    try {
      // 1. 获取药品信息
      const medication = await this.medicationsService.findOne(medicationId, userId);
+      const languageConfig = await this.getUserLanguageConfig(userId);

      this.logger.log(`获取到药品信息: ${JSON.stringify(medication, null, 2)}`);
      // 2. 构建专业医药分析提示
-      const prompt = this.buildMedicationAnalysisPromptV2(medication);
+      const prompt = this.buildMedicationAnalysisPromptV2(medication, languageConfig);

      let result: AiAnalysisResultDto;

@@ -346,7 +357,7 @@ export class MedicationAnalysisService {
   * @param medication 药品信息
   * @returns 分析提示文本
   */
-  private buildMedicationAnalysisPrompt(medication: Medication): string {
+  private buildMedicationAnalysisPrompt(medication: Medication, languageConfig: LanguageConfig): string {
    const formName = this.getMedicationFormName(medication.form);
    const dosageInfo = `${medication.dosageValue}${medication.dosageUnit}`;
    
@@ -387,6 +398,10 @@ ${medication.note ? `- 用户备注：${medication.note}` : ''}
 6. 给予健康关怀和鼓励
 7. 如果有图片，请结合图片信息提供更准确的分析

+**语言要求**：
+${languageConfig.analysisInstruction}
+- 将所有标题、要点、提醒翻译为${languageConfig.label}（保留药品名称、成分等专有名词的常用写法），不要混用其他语言
+
 **输出格式要求**：

 **情况A：无法识别药品时**（药品名称不明确、过于笼统、随意输入、或缺少必要信息），请使用以下格式：
@@ -491,7 +506,7 @@ ${medication.note ? `- 用户备注：${medication.note}` : ''}
   * @param medication 药品信息
   * @returns 分析提示文本
   */
-  private buildMedicationAnalysisPromptV2(medication: Medication): string {
+  private buildMedicationAnalysisPromptV2(medication: Medication, languageConfig: LanguageConfig): string {
    const formName = this.getMedicationFormName(medication.form);
    const dosageInfo = `${medication.dosageValue}${medication.dosageUnit}`;
    
@@ -507,6 +522,11 @@ ${medication.note ? `- 用户备注：${medication.note}` : ''}
 ${medication.photoUrl ? '- 药品图片：已提供（请结合图片中的药品外观、包装、说明书等信息进行分析）' : ''}
 ${medication.note ? `- 用户备注：${medication.note}` : ''}

+**语言要求**：
+- ${languageConfig.jsonInstruction}
+- 如果需要描述或解释，请使用${languageConfig.label}
+- 无法识别药品时，mainUsage 字段返回 "${languageConfig.unableToIdentifyMessage}"
+
 **重要指示**：
 请以严格的 JSON 格式返回分析结果，不要包含任何 Markdown 标记或其他文本。JSON 结构如下：

@@ -529,7 +549,7 @@ ${medication.note ? `- 用户备注：${medication.note}` : ''}
 6. storageAdvice: 储存和保管建议，字符串数组
 7. healthAdvice: 健康关怀建议（生活方式、饮食等），字符串数组

-如果无法识别药品，请在所有数组字段返回空数组，mainUsage 返回 "无法识别药品，请提供更准确的名称或图片"。
+如果无法识别药品，请在所有数组字段返回空数组，mainUsage 返回 "${languageConfig.unableToIdentifyMessage}"。
 `;
  }

@@ -552,4 +572,40 @@ ${medication.note ? `- 用户备注：${medication.note}` : ''}
    };
    return formNames[form] || form;
  }
-}
+
+  /**
+   * 根据用户ID获取语言配置
+   */
+  private async getUserLanguageConfig(userId: string): Promise<LanguageConfig> {
+    try {
+      const language = await this.usersService.getUserLanguage(userId);
+      return this.buildLanguageConfig(language);
+    } catch (error) {
+      this.logger.error(`获取用户语言失败，使用默认中文: ${error instanceof Error ? error.message : String(error)}`);
+      return this.buildLanguageConfig();
+    }
+  }
+
+  /**
+   * 将语言代码映射为提示配置
+   */
+  private buildLanguageConfig(language?: string): LanguageConfig {
+    const normalized = (language || '').toLowerCase();
+
+    if (normalized.startsWith('en')) {
+      return {
+        label: 'English',
+        analysisInstruction: 'Respond entirely in English. Translate every section title, bullet point and paragraph; keep emojis unchanged.',
+        jsonInstruction: 'Return all JSON values in English. Keep JSON keys exactly as defined in the schema.',
+        unableToIdentifyMessage: 'Unable to identify the medication, please provide a more accurate name or image.',
+      };
+    }
+
+    return {
+      label: '简体中文',
+      analysisInstruction: '请使用简体中文输出全部内容（包括标题、要点和提醒），不要混用其他语言。',
+      jsonInstruction: '请确保 JSON 中的值使用简体中文，字段名保持英文。',
+      unableToIdentifyMessage: '无法识别药品，请提供更准确的名称或图片。',
+    };
+  }
+}
--- a/src/medications/services/medication-recognition.service.ts
+++ b/src/medications/services/medication-recognition.service.ts
@@ -10,6 +10,34 @@ import {
  RecognitionStatusEnum,
  RECOGNITION_STATUS_DESCRIPTIONS,
 } from '../enums/recognition-status.enum';
+import { UsersService } from '../../users/users.service';
+
+const STATUS_MESSAGES = {
+  'zh-CN': {
+    [RecognitionStatusEnum.PENDING]: '任务已创建，等待处理',
+    [RecognitionStatusEnum.ANALYZING_PRODUCT]: '正在全方位分析药品信息...',
+    ANALYZING_PRODUCT_DONE: '药品分析完成',
+    [RecognitionStatusEnum.ANALYZING_SUITABILITY]: '正在分析适宜人群...',
+    ANALYZING_SUITABILITY_DONE: '适宜人群分析完成',
+    [RecognitionStatusEnum.ANALYZING_INGREDIENTS]: '正在分析主要成分...',
+    ANALYZING_INGREDIENTS_DONE: '成分分析完成',
+    [RecognitionStatusEnum.ANALYZING_EFFECTS]: '正在分析副作用和健康建议...',
+    [RecognitionStatusEnum.COMPLETED]: '识别完成',
+    [RecognitionStatusEnum.FAILED]: '识别失败',
+  },
+  'en-US': {
+    [RecognitionStatusEnum.PENDING]: 'Task created, waiting for processing',
+    [RecognitionStatusEnum.ANALYZING_PRODUCT]: 'Analyzing medication information comprehensively...',
+    ANALYZING_PRODUCT_DONE: 'Medication analysis completed',
+    [RecognitionStatusEnum.ANALYZING_SUITABILITY]: 'Analyzing suitable users...',
+    ANALYZING_SUITABILITY_DONE: 'Suitability analysis completed',
+    [RecognitionStatusEnum.ANALYZING_INGREDIENTS]: 'Analyzing main ingredients...',
+    ANALYZING_INGREDIENTS_DONE: 'Ingredients analysis completed',
+    [RecognitionStatusEnum.ANALYZING_EFFECTS]: 'Analyzing side effects and health advice...',
+    [RecognitionStatusEnum.COMPLETED]: 'Recognition completed',
+    [RecognitionStatusEnum.FAILED]: 'Recognition failed',
+  },
+};

 /**
 * 药物AI识别服务
@@ -26,6 +54,7 @@ export class MedicationRecognitionService {
    private readonly configService: ConfigService,
    @InjectModel(MedicationRecognitionTask)
    private readonly taskModel: typeof MedicationRecognitionTask,
+    private readonly usersService: UsersService,
  ) {
    const glmApiKey = this.configService.get<string>('GLM_API_KEY');
    const glmBaseURL =
@@ -40,7 +69,7 @@ export class MedicationRecognitionService {
    this.visionModel =
      this.configService.get<string>('GLM_VISION_MODEL') || 'glm-4.5v';
    this.textModel =
-      this.configService.get<string>('GLM_MODEL') || 'glm-4.5-air';
+      this.configService.get<string>('GLM_MODEL') || 'glm-4.5-flash';
  }

  /**
@@ -54,6 +83,13 @@ export class MedicationRecognitionService {

    this.logger.log(`创建药物识别任务: ${taskId}, 用户: ${userId}`);

+    // 获取用户语言
+    const language = await this.usersService.getUserLanguage(userId);
+    const currentStep = this.getStatusMessage(
+      RecognitionStatusEnum.PENDING,
+      language,
+    );
+
    await this.taskModel.create({
      id: taskId,
      userId,
@@ -61,7 +97,7 @@ export class MedicationRecognitionService {
      sideImageUrl: dto.sideImageUrl,
      auxiliaryImageUrl: dto.auxiliaryImageUrl,
      status: RecognitionStatusEnum.PENDING,
-      currentStep: RECOGNITION_STATUS_DESCRIPTIONS[RecognitionStatusEnum.PENDING],
+      currentStep,
      progress: 0,
    });

@@ -112,66 +148,25 @@ export class MedicationRecognitionService {
      const task = await this.taskModel.findByPk(taskId);
      if (!task) return;

-      // 阶段1: 产品识别分析 (0-40%)
+      // 获取用户语言
+      const language = await this.usersService.getUserLanguage(task.userId);
+
+      // 阶段1: 全量识别分析 (0-90%)
+      // 使用 GLM-4.5v 强大的多模态能力，一次性提取所有信息，避免多次调用
      await this.updateTaskStatus(
        taskId,
        RecognitionStatusEnum.ANALYZING_PRODUCT,
-        '正在识别药品基本信息...',
+        this.getStatusMessage(RecognitionStatusEnum.ANALYZING_PRODUCT, language),
        10,
      );
-      const productInfo = await this.recognizeProduct(task);
-      await this.updateTaskStatus(
-        taskId,
-        RecognitionStatusEnum.ANALYZING_PRODUCT,
-        '药品基本信息识别完成',
-        40,
-      );
+      
+      this.logger.log(`任务 ${taskId} 开始执行全量识别分析（视觉+知识库）`);
+      
+      const recognitionResult = await this.recognizeProduct(task, language);

-      // 阶段2: 适宜人群分析 (40-60%)
-      await this.updateTaskStatus(
-        taskId,
-        RecognitionStatusEnum.ANALYZING_SUITABILITY,
-        '正在分析适宜人群...',
-        50,
-      );
-      const suitabilityInfo = await this.analyzeSuitability(productInfo);
-      await this.updateTaskStatus(
-        taskId,
-        RecognitionStatusEnum.ANALYZING_SUITABILITY,
-        '适宜人群分析完成',
-        60,
-      );
-
-      // 阶段3: 成分分析 (60-80%)
-      await this.updateTaskStatus(
-        taskId,
-        RecognitionStatusEnum.ANALYZING_INGREDIENTS,
-        '正在分析主要成分...',
-        70,
-      );
-      const ingredientsInfo = await this.analyzeIngredients(productInfo);
-      await this.updateTaskStatus(
-        taskId,
-        RecognitionStatusEnum.ANALYZING_INGREDIENTS,
-        '成分分析完成',
-        80,
-      );
-
-      // 阶段4: 副作用分析 (80-100%)
-      await this.updateTaskStatus(
-        taskId,
-        RecognitionStatusEnum.ANALYZING_EFFECTS,
-        '正在分析副作用和健康建议...',
-        90,
-      );
-      const effectsInfo = await this.analyzeEffects(productInfo);
-
-      // 合并所有结果，透传所有原始图片URL（避免被AI模型修改）
+      // 合并结果，透传所有原始图片URL
      const finalResult = {
-        ...productInfo,
-        ...suitabilityInfo,
-        ...ingredientsInfo,
-        ...effectsInfo,
+        ...recognitionResult,
        // 强制使用任务记录中存储的原始图片URL，覆盖AI可能返回的不正确链接
        photoUrl: task.frontImageUrl,
        sideImageUrl: task.sideImageUrl,
@@ -179,23 +174,33 @@ export class MedicationRecognitionService {
      } as RecognitionResultDto;

      // 完成识别
-      await this.completeTask(taskId, finalResult);
+      await this.completeTask(taskId, finalResult, language);
      this.logger.log(`识别任务 ${taskId} 完成`);
    } catch (error) {
      const errorMessage =
        error instanceof Error ? error.message : String(error);
      this.logger.error(`识别任务 ${taskId} 失败: ${errorMessage}`);
-      await this.failTask(taskId, errorMessage);
+      // 尝试获取任务和语言信息以更新失败状态
+      try {
+        const taskInfo = await this.taskModel.findByPk(taskId);
+        const lang = taskInfo
+          ? await this.usersService.getUserLanguage(taskInfo.userId)
+          : 'zh-CN';
+        await this.failTask(taskId, errorMessage, lang);
+      } catch (e) {
+        this.logger.error(`更新失败状态出错: ${e}`);
+      }
    }
  }

  /**
-   * 阶段1: 识别药品基本信息
+   * 执行全量药品识别（包含基本信息和详细分析）
   */
  private async recognizeProduct(
    task: MedicationRecognitionTask,
+    language: string,
  ): Promise<Partial<RecognitionResultDto>> {
-    const prompt = this.buildProductRecognitionPrompt();
+    const prompt = this.buildProductRecognitionPrompt(language);
    const images = [task.frontImageUrl, task.sideImageUrl];
    if (task.auxiliaryImageUrl) images.push(task.auxiliaryImageUrl);

@@ -256,100 +261,10 @@ export class MedicationRecognitionService {
  }

  /**
-   * 阶段2: 分析适宜人群
+   * 构建全量产品识别提示词
   */
-  private async analyzeSuitability(
-    productInfo: Partial<RecognitionResultDto>,
-  ): Promise<Partial<RecognitionResultDto>> {
-    const prompt = this.buildSuitabilityAnalysisPrompt(productInfo);
-
-    this.logger.log(`分析适宜人群: ${productInfo.name}`);
-
-    const response = await this.client.chat.completions.create({
-      model: this.textModel,
-      temperature: 0.7,
-      messages: [
-        {
-          role: 'user',
-          content: prompt,
-        },
-      ],
-      response_format: { type: 'json_object' },
-    });
-
-    const content = response.choices[0]?.message?.content;
-    if (!content) {
-      throw new Error('AI模型返回内容为空');
-    }
-
-    return this.parseJsonResponse(content);
-  }
-
-  /**
-   * 阶段3: 分析主要成分
-   */
-  private async analyzeIngredients(
-    productInfo: Partial<RecognitionResultDto>,
-  ): Promise<Partial<RecognitionResultDto>> {
-    const prompt = this.buildIngredientsAnalysisPrompt(productInfo);
-
-    this.logger.log(`分析主要成分: ${productInfo.name}`);
-
-    const response = await this.client.chat.completions.create({
-      model: this.textModel,
-      temperature: 0.7,
-      messages: [
-        {
-          role: 'user',
-          content: prompt,
-        },
-      ],
-      response_format: { type: 'json_object' },
-    });
-
-    const content = response.choices[0]?.message?.content;
-    if (!content) {
-      throw new Error('AI模型返回内容为空');
-    }
-
-    return this.parseJsonResponse(content);
-  }
-
-  /**
-   * 阶段4: 分析副作用和健康建议
-   */
-  private async analyzeEffects(
-    productInfo: Partial<RecognitionResultDto>,
-  ): Promise<Partial<RecognitionResultDto>> {
-    const prompt = this.buildEffectsAnalysisPrompt(productInfo);
-
-    this.logger.log(`分析副作用和健康建议: ${productInfo.name}`);
-
-    const response = await this.client.chat.completions.create({
-      model: this.textModel,
-      temperature: 0.7,
-      messages: [
-        {
-          role: 'user',
-          content: prompt,
-        },
-      ],
-      response_format: { type: 'json_object' },
-    });
-
-    const content = response.choices[0]?.message?.content;
-    if (!content) {
-      throw new Error('AI模型返回内容为空');
-    }
-
-    return this.parseJsonResponse(content);
-  }
-
-  /**
-   * 构建产品识别提示词
-   */
-  private buildProductRecognitionPrompt(): string {
-    return `你是一位拥有20年从业经验的资深药剂师，请根据提供的药品图片（包括正面、侧面和可能的辅助面）进行详细分析。
+  private buildProductRecognitionPrompt(language: string): string {
+    return `你是一位拥有20年从业经验的资深药剂师，请根据提供的药品图片（包括正面、侧面和可能的辅助面）进行全方位的详细分析。

 **重要前提条件 - 图片可读性判断**：
 ⚠️ 在进行任何识别之前，你必须首先判断图片是否足够清晰可读：
@@ -360,10 +275,10 @@ export class MedicationRecognitionService {

 **只有在图片清晰可读的情况下才能继续分析**：
 1. 仔细观察药品包装、说明书上的所有信息
-2. 识别药品的完整名称（通用名和商品名）
-3. 确定药物剂型（片剂/胶囊/注射剂等）
-4. 提取规格剂量信息
-5. 推荐合理的服用次数和时间
+2. 识别药品的完整名称、剂型、规格剂量
+3. 分析适宜人群、禁忌人群
+4. 提取主要成分、副作用、储存建议
+5. 给出健康建议和服用时间

 **置信度评估标准（仅在图片可读时评估）**：
 - 如果图片清晰且信息完整，置信度应 >= 0.8
@@ -371,9 +286,13 @@ export class MedicationRecognitionService {
 - 如果关键信息缺失或模糊不清，置信度 < 0.6，name返回"无法识别"
 - 置信度评估必须严格基于实际可见信息，不能猜测或臆断

+**重要提示**：
+请使用 ${language} 语言返回所有文本内容。
+Please respond in ${language}.
+
 **返回严格的JSON格式**（不要包含任何markdown标记）：
 {
-  "isReadable": true或false（图片是否足够清晰可读）,
+  "isReadable": true或false,
  "name": "药品完整名称",
  "photoUrl": "使用正面图片URL",
  "form": "剂型(tablet/capsule/injection/drops/syrup/ointment/powder/granules)",
@@ -381,97 +300,26 @@ export class MedicationRecognitionService {
  "dosageUnit": "剂量单位",
  "timesPerDay": 建议每日服用次数(数字),
  "medicationTimes": ["建议的服药时间，格式HH:mm"],
-  "confidence": 识别置信度(0-1的小数)
-}
-
-**关键规则（必须遵守）**：
-1. isReadable 是最重要的字段，如果为 false，其他识别结果将被忽略
-2. 当图片模糊、反光、文字不清晰时，必须设置 isReadable 为 false
-3. 只有在确实能看清并理解图片内容时，才能设置 isReadable 为 true
-4. confidence 必须反映真实的识别把握程度，不能虚高
-5. 如果 isReadable 为 false，name 必须返回"无法识别"，confidence 设为 0
-6. dosageValue 和 timesPerDay 必须是数字类型，不要加引号
-7. medicationTimes 必须是 HH:mm 格式的时间数组
-8. form 必须是枚举值之一
-
-**宁可识别失败，也不要提供不准确的药品信息。用药安全高于一切！**`;
-  }
-
-  /**
-   * 构建适宜人群分析提示词
-   */
-  private buildSuitabilityAnalysisPrompt(
-    productInfo: Partial<RecognitionResultDto>,
-  ): string {
-    return `作为资深药剂师，请分析以下药品的适宜人群和禁忌人群：
-
-**药品信息**：
- 名称：${productInfo.name}
- 剂型：${productInfo.form}
- 剂量：${productInfo.dosageValue}${productInfo.dosageUnit}
-
-请以严格的JSON格式返回（不要包含任何markdown标记）：
-{
+  "confidence": 识别置信度(0-1),
  "suitableFor": ["适合人群1", "适合人群2", "适合人群3"],
  "unsuitableFor": ["不适合人群1", "不适合人群2", "不适合人群3"],
-  "mainUsage": "药品的主要用途和适应症描述"
-}
-
-**要求**：
- suitableFor 和 unsuitableFor 必须是字符串数组，至少包含3项
- mainUsage 是字符串，描述药品的主要治疗用途
- 如果无法识别药品，所有数组返回空数组，mainUsage返回"无法识别药品"`;
-  }
-
-  /**
-   * 构建成分分析提示词
-   */
-  private buildIngredientsAnalysisPrompt(
-    productInfo: Partial<RecognitionResultDto>,
-  ): string {
-    return `作为资深药剂师，请分析以下药品的主要成分：
-
-**药品信息**：
- 名称：${productInfo.name}
- 用途：${productInfo.mainUsage}
-
-请以严格的JSON格式返回（不要包含任何markdown标记）：
-{
-  "mainIngredients": ["主要成分1", "主要成分2", "主要成分3"]
-}
-
-**要求**：
- mainIngredients 必须是字符串数组，列出药品的主要活性成分
- 至少包含1-3个主要成分
- 如果无法确定，返回空数组`;
-  }
-
-  /**
-   * 构建副作用分析提示词
-   */
-  private buildEffectsAnalysisPrompt(
-    productInfo: Partial<RecognitionResultDto>,
-  ): string {
-    return `作为资深药剂师，请分析以下药品的副作用、储存建议和健康建议：
-
-**药品信息**：
- 名称：${productInfo.name}
- 用途：${productInfo.mainUsage}
- 成分：${productInfo.mainIngredients?.join('、')}
-
-请以严格的JSON格式返回（不要包含任何markdown标记）：
-{
+  "mainUsage": "药品的主要用途和适应症描述",
+  "mainIngredients": ["主要成分1", "主要成分2", "主要成分3"],
  "sideEffects": ["副作用1", "副作用2", "副作用3"],
  "storageAdvice": ["储存建议1", "储存建议2", "储存建议3"],
  "healthAdvice": ["健康建议1", "健康建议2", "健康建议3"]
 }

-**要求**：
- 所有字段都是字符串数组
- sideEffects: 列出常见和严重的副作用，至少3项
- storageAdvice: 提供正确的储存方法，至少2项
- healthAdvice: 给出配合用药的生活建议，至少3项
- 如果无法确定，返回空数组`;
+**关键规则（必须遵守）**：
+1. isReadable 是最重要的字段，如果为 false，其他识别结果将被忽略，name返回"无法识别"，confidence 为 0
+2. dosageValue 和 timesPerDay 必须是数字类型，不要加引号
+3. medicationTimes 必须是 HH:mm 格式的时间数组
+4. form 必须是枚举值之一
+5. suitableFor/unsuitableFor/mainIngredients/sideEffects/storageAdvice/healthAdvice 必须是字符串数组
+6. 数组字段至少包含 1-3 项，如无信息返回空数组
+7. 必须使用 ${language} 语言回答所有文本描述性内容
+
+**宁可识别失败，也不要提供不准确的药品信息。用药安全高于一切！**`;
  }

  /**
@@ -529,11 +377,15 @@ export class MedicationRecognitionService {
  private async completeTask(
    taskId: string,
    result: RecognitionResultDto,
+    language: string = 'zh-CN',
  ): Promise<void> {
    await this.taskModel.update(
      {
        status: RecognitionStatusEnum.COMPLETED,
-        currentStep: RECOGNITION_STATUS_DESCRIPTIONS[RecognitionStatusEnum.COMPLETED],
+        currentStep: this.getStatusMessage(
+          RecognitionStatusEnum.COMPLETED,
+          language,
+        ),
        progress: 100,
        recognitionResult: JSON.stringify(result),
        completedAt: new Date(),
@@ -547,11 +399,18 @@ export class MedicationRecognitionService {
  /**
   * 任务失败
   */
-  private async failTask(taskId: string, errorMessage: string): Promise<void> {
+  private async failTask(
+    taskId: string,
+    errorMessage: string,
+    language: string = 'zh-CN',
+  ): Promise<void> {
    await this.taskModel.update(
      {
        status: RecognitionStatusEnum.FAILED,
-        currentStep: RECOGNITION_STATUS_DESCRIPTIONS[RecognitionStatusEnum.FAILED],
+        currentStep: this.getStatusMessage(
+          RecognitionStatusEnum.FAILED,
+          language,
+        ),
        progress: 0,
        errorMessage,
        completedAt: new Date(),
@@ -561,4 +420,18 @@ export class MedicationRecognitionService {
      },
    );
  }
+
+  /**
+   * 获取多语言状态描述
+   */
+  private getStatusMessage(key: string, language: string): string {
+    // 简化语言代码，如 'zh-TW' -> 'zh-CN', 'en-GB' -> 'en-US'
+    let langCode = 'zh-CN'; // 默认中文
+    if (language.toLowerCase().startsWith('en')) {
+      langCode = 'en-US';
+    }
+
+    const messages = STATUS_MESSAGES[langCode] || STATUS_MESSAGES['zh-CN'];
+    return messages[key] || key;
+  }
 }
--- a/src/users/users.service.ts
+++ b/src/users/users.service.ts
@@ -197,6 +197,22 @@ export class UsersService {
    }
  }

+  async getUserLanguage(userId: string): Promise<string> {
+    try {
+      const user = await this.userModel.findOne({ where: { id: userId } });
+
+      if (!user) {
+        this.logger.warn(`getUserLanguage: ${userId} not found, default zh-CN`);
+        return 'zh-CN';
+      }
+
+      return user.language || 'zh-CN';
+    } catch (error) {
+      this.logger.error(`getUserLanguage error: ${error instanceof Error ? error.message : String(error)}`);
+      return 'zh-CN';
+    }
+  }
+
  // 扣减用户免费次数
  async deductUserUsageCount(userId: string, count: number = 1): Promise<void> {
    try {