diff --git a/resource/redisCli/util.go b/resource/redisCli/util.go
index ded2242a050035e116f5b48310b071652c20fed2..b6b4f8092bf14194d556af63dcb375ab70ca7ae8 100644
--- a/resource/redisCli/util.go
+++ b/resource/redisCli/util.go
@@ -65,3 +65,12 @@ func IncrNumExpire(key string, num int64, expiration time.Duration) (int64, erro
 	}
 	return times, nil
 }
+
+func DelCache(key string) error {
+	err := RedisClient.Del(context.Background(), key).Err()
+	if err != nil {
+		mylogrus.MyLog.Errorf("DelCache key:%s, err:%s", key, err)
+		return err
+	}
+	return nil
+}