diff --git a/backend/services/mining-admin-service/src/api/controllers/auth.controller.ts b/backend/services/mining-admin-service/src/api/controllers/auth.controller.ts
index 5f9a089a..302988c5 100644
--- a/backend/services/mining-admin-service/src/api/controllers/auth.controller.ts
+++ b/backend/services/mining-admin-service/src/api/controllers/auth.controller.ts
@@ -1,9 +1,20 @@
 import { Controller, Post, Body, Req, HttpCode, HttpStatus } from '@nestjs/common';
-import { ApiTags, ApiOperation, ApiBearerAuth } from '@nestjs/swagger';
+import { ApiTags, ApiOperation, ApiBearerAuth, ApiProperty } from '@nestjs/swagger';
+import { IsString, IsNotEmpty } from 'class-validator';
 import { AuthService } from '../../application/services/auth.service';
 import { Public } from '../../shared/guards/admin-auth.guard';
 
-class LoginDto { username: string; password: string; }
+class LoginDto {
+  @ApiProperty({ description: '用户名' })
+  @IsString()
+  @IsNotEmpty()
+  username: string;
+
+  @ApiProperty({ description: '密码' })
+  @IsString()
+  @IsNotEmpty()
+  password: string;
+}
 
 @ApiTags('Auth')
 @Controller('auth')