diff --git a/src/business/login/login.controller.ts b/src/business/login/login.controller.ts
index 7196805..4aee6af 100644
--- a/src/business/login/login.controller.ts
+++ b/src/business/login/login.controller.ts
@@ -20,9 +20,18 @@
  */
 
 import { Controller, Post, Put, Body, HttpCode, HttpStatus, ValidationPipe, UsePipes, Logger } from '@nestjs/common';
+import { ApiTags, ApiOperation, ApiResponse as SwaggerApiResponse, ApiBody } from '@nestjs/swagger';
 import { LoginService, ApiResponse, LoginResponse } from './login.service';
 import { LoginDto, RegisterDto, GitHubOAuthDto, ForgotPasswordDto, ResetPasswordDto, ChangePasswordDto } from './login.dto';
+import { 
+  LoginResponseDto, 
+  RegisterResponseDto, 
+  GitHubOAuthResponseDto, 
+  ForgotPasswordResponseDto, 
+  CommonResponseDto 
+} from './login-response.dto';
 
+@ApiTags('auth')
 @Controller('auth')
 export class LoginController {
   private readonly logger = new Logger(LoginController.name);
@@ -35,6 +44,24 @@ export class LoginController {
    * @param loginDto 登录数据
    * @returns 登录结果
    */
+  @ApiOperation({ 
+    summary: '用户登录', 
+    description: '支持用户名、邮箱或手机号登录' 
+  })
+  @ApiBody({ type: LoginDto })
+  @SwaggerApiResponse({ 
+    status: 200, 
+    description: '登录成功', 
+    type: LoginResponseDto 
+  })
+  @SwaggerApiResponse({ 
+    status: 400, 
+    description: '请求参数错误' 
+  })
+  @SwaggerApiResponse({ 
+    status: 401, 
+    description: '用户名或密码错误' 
+  })
   @Post('login')
   @HttpCode(HttpStatus.OK)
   @UsePipes(new ValidationPipe({ transform: true }))
@@ -51,6 +78,24 @@ export class LoginController {
    * @param registerDto 注册数据
    * @returns 注册结果
    */
+  @ApiOperation({ 
+    summary: '用户注册', 
+    description: '创建新用户账户' 
+  })
+  @ApiBody({ type: RegisterDto })
+  @SwaggerApiResponse({ 
+    status: 201, 
+    description: '注册成功', 
+    type: RegisterResponseDto 
+  })
+  @SwaggerApiResponse({ 
+    status: 400, 
+    description: '请求参数错误' 
+  })
+  @SwaggerApiResponse({ 
+    status: 409, 
+    description: '用户名或邮箱已存在' 
+  })
   @Post('register')
   @HttpCode(HttpStatus.CREATED)
   @UsePipes(new ValidationPipe({ transform: true }))
@@ -70,6 +115,24 @@ export class LoginController {
    * @param githubDto GitHub OAuth数据
    * @returns 登录结果
    */
+  @ApiOperation({ 
+    summary: 'GitHub OAuth登录', 
+    description: '使用GitHub账户登录或注册' 
+  })
+  @ApiBody({ type: GitHubOAuthDto })
+  @SwaggerApiResponse({ 
+    status: 200, 
+    description: 'GitHub登录成功', 
+    type: GitHubOAuthResponseDto 
+  })
+  @SwaggerApiResponse({ 
+    status: 400, 
+    description: '请求参数错误' 
+  })
+  @SwaggerApiResponse({ 
+    status: 401, 
+    description: 'GitHub认证失败' 
+  })
   @Post('github')
   @HttpCode(HttpStatus.OK)
   @UsePipes(new ValidationPipe({ transform: true }))
@@ -89,6 +152,24 @@ export class LoginController {
    * @param forgotPasswordDto 忘记密码数据
    * @returns 发送结果
    */
+  @ApiOperation({ 
+    summary: '发送密码重置验证码', 
+    description: '向用户邮箱或手机发送密码重置验证码' 
+  })
+  @ApiBody({ type: ForgotPasswordDto })
+  @SwaggerApiResponse({ 
+    status: 200, 
+    description: '验证码发送成功', 
+    type: ForgotPasswordResponseDto 
+  })
+  @SwaggerApiResponse({ 
+    status: 400, 
+    description: '请求参数错误' 
+  })
+  @SwaggerApiResponse({ 
+    status: 404, 
+    description: '用户不存在' 
+  })
   @Post('forgot-password')
   @HttpCode(HttpStatus.OK)
   @UsePipes(new ValidationPipe({ transform: true }))
@@ -102,6 +183,24 @@ export class LoginController {
    * @param resetPasswordDto 重置密码数据
    * @returns 重置结果
    */
+  @ApiOperation({ 
+    summary: '重置密码', 
+    description: '使用验证码重置用户密码' 
+  })
+  @ApiBody({ type: ResetPasswordDto })
+  @SwaggerApiResponse({ 
+    status: 200, 
+    description: '密码重置成功', 
+    type: CommonResponseDto 
+  })
+  @SwaggerApiResponse({ 
+    status: 400, 
+    description: '请求参数错误或验证码无效' 
+  })
+  @SwaggerApiResponse({ 
+    status: 404, 
+    description: '用户不存在' 
+  })
   @Post('reset-password')
   @HttpCode(HttpStatus.OK)
   @UsePipes(new ValidationPipe({ transform: true }))
@@ -119,6 +218,24 @@ export class LoginController {
    * @param changePasswordDto 修改密码数据
    * @returns 修改结果
    */
+  @ApiOperation({ 
+    summary: '修改密码', 
+    description: '用户修改自己的密码（需要提供旧密码）' 
+  })
+  @ApiBody({ type: ChangePasswordDto })
+  @SwaggerApiResponse({ 
+    status: 200, 
+    description: '密码修改成功', 
+    type: CommonResponseDto 
+  })
+  @SwaggerApiResponse({ 
+    status: 400, 
+    description: '请求参数错误或旧密码不正确' 
+  })
+  @SwaggerApiResponse({ 
+    status: 404, 
+    description: '用户不存在' 
+  })
   @Put('change-password')
   @HttpCode(HttpStatus.OK)
   @UsePipes(new ValidationPipe({ transform: true }))