diff --git a/apiserver/paasng/paasng/misc/monitoring/monitor/alert_rules/config/constants.py b/apiserver/paasng/paasng/misc/monitoring/monitor/alert_rules/config/constants.py
index d76d4dc558..71034781d3 100644
--- a/apiserver/paasng/paasng/misc/monitoring/monitor/alert_rules/config/constants.py
+++ b/apiserver/paasng/paasng/misc/monitoring/monitor/alert_rules/config/constants.py
@@ -62,6 +62,6 @@
     AlertCode.GCS_MYSQL_SLOW_QUERY.value: {
         "display_name": _("GCS-MySQL 慢查询新增"),
         "metric_label_names": ["gcs_mysql_user"],
-        "threshold_expr": "> 0",  # 慢查询增长超过 0
+        "threshold_expr": "> 5",  # 慢查询增长超过 5
     },
 }