diff --git a/apps/server/src/sync/sync.controller.ts b/apps/server/src/sync/sync.controller.ts
index 7fda1bb..db4e757 100644
--- a/apps/server/src/sync/sync.controller.ts
+++ b/apps/server/src/sync/sync.controller.ts
@@ -1,4 +1,4 @@
-import { BadRequestException, Body, Controller, Get, Post, Query, UseGuards } from '@nestjs/common';
+import { BadRequestException, Body, Controller, Get, Logger, Post, Query, UseGuards } from '@nestjs/common';
 import { JwtAuthGuard } from '../auth/guards/jwt-auth.guard';
 import { RequirePermission } from '../auth/decorators/permission.decorator';
 import { SyncService } from './sync.service';
@@ -8,6 +8,7 @@ import { ImportUsersDto } from './dto/import-users.dto';
 @UseGuards(JwtAuthGuard)
 @Controller('sync')
 export class SyncController {
+  private readonly logger = new Logger(SyncController.name);
   constructor(private readonly syncService: SyncService) {}
 
   @Post('trigger')
@@ -54,7 +55,10 @@ export class SyncController {
   @Post('dingtalk/import-users')
   @RequirePermission('sync:trigger')
   async importDingTalkUsers(@Body() body: ImportUsersDto) {
+    this.logger.log(`[import] users=${body.users.length} classes=${body.classes?.length || 0}`);
+    this.logger.log(`[import] sample user: ${JSON.stringify(body.users[0])}`);
     const result = await this.syncService.importDingTalkUsers(body.users, body.classes);
+    this.logger.log(`[import result] ${JSON.stringify(result)}`);
     return { success: true, ...result };
   }