diff --git a/mymysql/mysql.go b/mymysql/mysql.go
index bb04458..a66f557 100644
--- a/mymysql/mysql.go
+++ b/mymysql/mysql.go
@@ -138,12 +138,12 @@ func NewGormLogger(writer gormLogger.Writer, gormLoggerConfig gormLogger.Config)
 	return gormLogger.New(writer, gormLoggerConfig)
 }
 
-func CloseInstance(key string) {
+func CloseDB(key string) {
 	db, _ := DB(key).DB()
 	db.Close()
 }
 
-func CloseAllInstance() {
+func CloseAllDB() {
 	for _, v := range instanceMap {
 		db, _ := v.DB()
 		db.Close()
diff --git a/mymysql/mysql_test.go b/mymysql/mysql_test.go
index 72d5c61..38b37ea 100644
--- a/mymysql/mysql_test.go
+++ b/mymysql/mysql_test.go
@@ -20,7 +20,7 @@ func TestMysql(t *testing.T) {
 		return
 	}
 
-	defer CloseAllInstance()
+	defer CloseAllDB()
 
 	var res = make(map[string]interface{})
 	err = DB().Table("image").Limit(1).Take(&res).Error
diff --git a/myredis/redis.go b/myredis/redis.go
index fd72c3a..3783ee0 100644
--- a/myredis/redis.go
+++ b/myredis/redis.go
@@ -169,11 +169,11 @@ func (r *MyRedis) SetJson(key string, value interface{}, t ...time.Duration) (st
 	return r.Client.Set(ctx, key, v, t2).Result()
 }
 
-func CloseInstance(key string) {
+func CloseDB(key string) {
 	DB(key).Client.Close()
 }
 
-func CloseAllInstance() {
+func CloseAllDB() {
 	for _, v := range instanceMap {
 		v.Client.Close()
 	}
diff --git a/myredis/redis_test.go b/myredis/redis_test.go
index dd104a6..1c71f05 100644
--- a/myredis/redis_test.go
+++ b/myredis/redis_test.go
@@ -21,7 +21,7 @@ func TestRedis(t *testing.T) {
 		fmt.Println(err)
 		return
 	}
-	defer CloseAllInstance()
+	defer CloseAllDB()
 
 	set, err := DB().Set(context.Background(), "name", "qwe123", time.Minute).Result()
 	if err != nil {