diff --git a/gateway/scripts/agents_health_check.py b/gateway/scripts/agents_health_check.py
index 379feef..7a1a40b 100644
--- a/gateway/scripts/agents_health_check.py
+++ b/gateway/scripts/agents_health_check.py
@@ -202,10 +202,12 @@ def main():
         login_ok = True
         if port_ok and svc.get("login_check") and svc.get("docker_name"):
             qr_showing = docker_log_check(svc["docker_name"], "扫码", minutes=10)
-            if qr_showing:
+            # 登录失效信号: loginCheck 错误 或 发消息时登录校验失败
+            login_err = docker_log_check(svc["docker_name"], "loginCheck", minutes=10)
+            if qr_showing or login_err:
                 login_ok = False
                 entry["login_ok"] = False
-                entry["login_detail"] = "not_logged_in"
+                entry["login_detail"] = "not_logged_in" if qr_showing else "session_expired"
             else:
                 entry["login_ok"] = True