diff --git a/backend/services/identity-service/src/api/controllers/user-account.controller.ts b/backend/services/identity-service/src/api/controllers/user-account.controller.ts
index 33f873b7..c6db8f0c 100644
--- a/backend/services/identity-service/src/api/controllers/user-account.controller.ts
+++ b/backend/services/identity-service/src/api/controllers/user-account.controller.ts
@@ -573,6 +573,7 @@ export class UserAccountController {
   }
 
   @Get('internal/users/by-wallet-address')
+  @Public()
   @ApiOperation({
     summary: '通过钱包地址查询用户信息（内部调用）',
     description: '通过区块链钱包地址查询用户的 accountSequence 和 userId',