diff --git a/src/server/db/Mysql.go b/src/server/db/Mysql.go
index af80a370..e2581d95 100644
--- a/src/server/db/Mysql.go
+++ b/src/server/db/Mysql.go
@@ -311,6 +311,27 @@ func ResetAccountData(oldName, newName string) error {
 	return err
 }
 
+func MappingAccountData(oldName, newName string) error {
+	sqlStr := "UPDATE t_account SET user_name = ? WHERE user_name = ?"
+	_, err := SqlDb.Exec(sqlStr, "", oldName)
+	if err != nil {
+		return err
+	}
+	sqlStr = "UPDATE t_player_baseinfo SET user_name = ? WHERE user_name = ?"
+	_, err = SqlDb.Exec(sqlStr, "", oldName)
+	if err != nil {
+		return err
+	}
+	sqlStr = "UPDATE t_account SET user_name = ? WHERE user_name = ?"
+	_, err = SqlDb.Exec(sqlStr, oldName, newName)
+	if err != nil {
+		return err
+	}
+	sqlStr = "UPDATE t_player_baseinfo SET user_name = ? WHERE user_name = ?"
+	_, err = SqlDb.Exec(sqlStr, oldName, newName)
+	return err
+}
+
 func UpdateAccountInfoToDb(account *Db_Account) (err error) {
 	_, err = SqlDb.Exec("UPDATE t_account SET user_password = ? WHERE user_name = ?", account.UserPassword, account.UserName)
 	return
diff --git a/src/server/game/gm_handler.go b/src/server/game/gm_handler.go
index 77bf594b..85979836 100644
--- a/src/server/game/gm_handler.go
+++ b/src/server/game/gm_handler.go
@@ -591,6 +591,22 @@ func ReqGmCommand_(player *Player, Command string) error {
 		BaseMod.Account = newAccount
 		player.GetPlayerBaseMod().Data.UserName = newAccount
 		player.PushAndSendClienRes(&msg.ForceKickOut{})
+	case "mapping":
+		if len(arg) < 2 {
+			return fmt.Errorf("mapping command requires an argument")
+		}
+		BaseMod := player.PlayMod.getBaseMod()
+		account := BaseMod.Account
+		err := db.MappingAccountData(account, arg[1])
+		if err != nil {
+			log.Error("resetPlayer err:%s", err.Error())
+			return err
+		}
+		log.Debug("player reset: old account: %s; new account %s", account, arg[1])
+		BaseMod.Account = ""
+		player.GetPlayerBaseMod().Data.UserName = ""
+		player.PushAndSendClienRes(&msg.ForceKickOut{})
+		player.ClearData()
 	case "resetCode":
 		BaseMod := player.PlayMod.getBaseMod()
 		BaseMod.AddCode = fmt.Sprintf("MMM-%s-%s", "156", GoUtil.UniqueStringFromInt(int(BaseMod.Uid)))