diff --git a/stress_test/login_stress_test.py b/stress_test/login_stress_test.py
index 39f86451..4c56f2b5 100644
--- a/stress_test/login_stress_test.py
+++ b/stress_test/login_stress_test.py
@@ -56,11 +56,12 @@ class LoginStressTest:
 
                 if response.status == 200:
                     data = await response.json()
-                    if data.get('success'):
+                    # 支持两种返回格式: {"success": true} 或 {"code": 0}
+                    if data.get('success') or data.get('code') == 0:
                         self.stats['success'] += 1
                         return True, elapsed, None
                     else:
-                        error = data.get('error', '未知错误')
+                        error = data.get('error') or data.get('message') or '未知错误'
                         self.stats['failed'] += 1
                         self.stats['errors'][error] += 1
                         return False, elapsed, error