diff --git a/src/models/mon_stra.go b/src/models/mon_stra.go
index f00bacde..98321f87 100644
--- a/src/models/mon_stra.go
+++ b/src/models/mon_stra.go
@@ -230,6 +230,11 @@ func StraDel(id int64) error {
 	return session.Commit()
 }
 
+func StraDelByNid(nid int64) error {
+	_, err := DB["mon"].Where("nid=?", nid).Delete(new(Stra))
+	return err
+}
+
 func StrasList(name string, priority int, nid int64) ([]*Stra, error) {
 	session := DB["mon"].NewSession()
 	defer session.Close()
diff --git a/src/models/node.go b/src/models/node.go
index 7e168ecd..00ef4f03 100644
--- a/src/models/node.go
+++ b/src/models/node.go
@@ -577,6 +577,8 @@ func GetLeafNidsForMon(nid int64, exclNid []int64) ([]int64, error) {
 	}
 
 	if node == nil {
+		// 节点已经被删了，相关的告警策略也删除
+		StraDelByNid(nid)
 		return []int64{}, nil
 	}