diff --git a/platformapi/tonglianpayapi/tonglianpayapi.go b/platformapi/tonglianpayapi/tonglianpayapi.go
index 51f442e0..248129db 100644
--- a/platformapi/tonglianpayapi/tonglianpayapi.go
+++ b/platformapi/tonglianpayapi/tonglianpayapi.go
@@ -45,6 +45,7 @@ type CreateUnitorderOrderParam struct {
 	NotifyUrl string `json:"notifyUrl"` //接收微信支付异步通知回调地址，通知url必须为直接可访问的url，不能携带参数。
 	Acct      string `json:"acct"`
 	PayType   string `json:"paytype"`
+	SubAppID  string `json:"subAppID"`
 }
 
 type CreateUnitorderOrderResult struct {
@@ -189,6 +190,7 @@ func (a *API) CreateUnitorderOrder(param *CreateUnitorderOrderParam) (result *Cr
 	params["reqsn"] = param.Reqsn
 	params["acct"] = param.Acct
 	params["paytype"] = param.PayType
+	params["sub_appid"] = param.SubAppID
 	retVal, err := a.AccessAPI(sepcAction, params)
 	if err == nil {
 		utils.Map2StructByJson(retVal, &result, false)