diff --git a/src/users/dto/update-user.dto.ts b/src/users/dto/update-user.dto.ts
index 4824c22..c3d8cc2 100644
--- a/src/users/dto/update-user.dto.ts
+++ b/src/users/dto/update-user.dto.ts
@@ -52,6 +52,10 @@ export class UpdateUserDto {
   @ApiProperty({ description: '身高（厘米）', example: 168 })
   height?: number;
 
+  @IsOptional()
+  @ApiProperty({ description: '活动水平（1-5的枚举值）', example: 3, minimum: 1, maximum: 5 })
+  activityLevel?: number;
+
 }
 
 export class UpdateUserResponseDto {
diff --git a/src/users/dto/user-response.dto.ts b/src/users/dto/user-response.dto.ts
index ce7a976..00cacad 100644
--- a/src/users/dto/user-response.dto.ts
+++ b/src/users/dto/user-response.dto.ts
@@ -25,7 +25,7 @@ export interface UserWithPurchaseStatus {
   maxUsageCount: number;
   favoriteTopicCount: number;
   isVip: boolean;
-  profile?: Pick<UserProfile, 'dailyStepsGoal' | 'dailyCaloriesGoal' | 'pilatesPurposes' | 'weight' | 'height'>;
+  profile?: Pick<UserProfile, 'dailyStepsGoal' | 'dailyCaloriesGoal' | 'pilatesPurposes' | 'weight' | 'height' | 'activityLevel'>;
 }
 
 export class UserResponseDto implements BaseResponseDto<UserWithPurchaseStatus> {
diff --git a/src/users/models/user-profile.model.ts b/src/users/models/user-profile.model.ts
index 2d82017..71f39ca 100644
--- a/src/users/models/user-profile.model.ts
+++ b/src/users/models/user-profile.model.ts
@@ -1,6 +1,14 @@
 import { BelongsTo, Column, DataType, ForeignKey, Model, Table } from 'sequelize-typescript';
 import { User } from './user.model';
 
+export enum ActivityLevel {
+  LEVEL_1 = 1,
+  LEVEL_2 = 2,
+  LEVEL_3 = 3,
+  LEVEL_4 = 4,
+  LEVEL_5 = 5,
+}
+
 @Table({
   tableName: 't_user_profile',
   underscored: true,
@@ -53,6 +61,17 @@ export class UserProfile extends Model {
   })
   declare height: number | null;
 
+  @Column({
+    type: DataType.INTEGER,
+    allowNull: true,
+    comment: '活动水平（1-5的枚举值）',
+    validate: {
+      min: 1,
+      max: 5,
+    },
+  })
+  declare activityLevel: ActivityLevel | null;
+
   @Column({
     type: DataType.DATE,
     defaultValue: DataType.NOW,
@@ -64,6 +83,4 @@ export class UserProfile extends Model {
     defaultValue: DataType.NOW,
   })
   declare updatedAt: Date;
-}
-
-
+}
\ No newline at end of file
diff --git a/src/users/users.service.ts b/src/users/users.service.ts
index 19afa6b..71bd708 100644
--- a/src/users/users.service.ts
+++ b/src/users/users.service.ts
@@ -109,6 +109,7 @@ export class UsersService {
         pilatesPurposes: profile?.pilatesPurposes,
         weight: profile?.weight,
         height: profile?.height,
+        activityLevel: profile?.activityLevel,
       }
 
       this.logger.log(`getProfile returnData: ${JSON.stringify(returnData, null, 2)}`);
@@ -178,7 +179,7 @@ export class UsersService {
 
   // 更新用户昵称、头像
   async updateUser(updateUserDto: UpdateUserDto): Promise<UpdateUserResponseDto> {
-    const { userId, name, avatar, gender, birthDate, dailyStepsGoal, dailyCaloriesGoal, pilatesPurposes, weight, height } = updateUserDto;
+    const { userId, name, avatar, gender, birthDate, dailyStepsGoal, dailyCaloriesGoal, pilatesPurposes, weight, height, activityLevel } = updateUserDto;
 
     this.logger.log(`updateUser: ${JSON.stringify(updateUserDto, null, 2)}`);
 
@@ -214,7 +215,7 @@ export class UsersService {
     await user.save();
 
     // 更新或创建扩展信息
-    if (dailyStepsGoal !== undefined || dailyCaloriesGoal !== undefined || pilatesPurposes !== undefined || weight !== undefined || height !== undefined) {
+    if (dailyStepsGoal !== undefined || dailyCaloriesGoal !== undefined || pilatesPurposes !== undefined || weight !== undefined || height !== undefined || activityLevel !== undefined) {
       const [profile] = await this.userProfileModel.findOrCreate({
         where: { userId },
         defaults: { userId },
@@ -235,6 +236,10 @@ export class UsersService {
         profile.height = height;
         profileChanges.height = height;
       }
+      if (activityLevel !== undefined) {
+        profile.activityLevel = activityLevel;
+        profileChanges.activityLevel = activityLevel;
+      }
       await profile.save();
     }
 
@@ -646,6 +651,7 @@ export class UsersService {
           pilatesPurposes: profileForLogin.pilatesPurposes,
           weight: profileForLogin.weight,
           height: profileForLogin.height,
+          activityLevel: profileForLogin.activityLevel,
         } : undefined,
       };
 
@@ -857,6 +863,7 @@ export class UsersService {
           pilatesPurposes: profileForGuest.pilatesPurposes,
           weight: profileForGuest.weight,
           height: profileForGuest.height,
+          activityLevel: profileForGuest.activityLevel,
         } : undefined,
       };