diff --git a/src/framework/redis/redis.go b/src/framework/redis/redis.go
index 2a9e25b3..2438ec4d 100644
--- a/src/framework/redis/redis.go
+++ b/src/framework/redis/redis.go
@@ -71,6 +71,10 @@ func DefaultRDB() *redis.Client {
 
 // 获取实例
 func RDB(source string) *redis.Client {
+	// 不指定时获取默认实例
+	if source == "" {
+		source = config.Get("redis.defaultDataSourceName").(string)
+	}
 	return rdbMap[source]
 }