diff --git a/md/alipay.go b/md/alipay.go
index 01dff9f..16d0539 100644
--- a/md/alipay.go
+++ b/md/alipay.go
@@ -167,3 +167,35 @@ type AlipayTradePay struct {
 	} `json:"alipay_trade_pay_response"`
 	Sign string `json:"sign"`
 }
+
+type AlipayTradeRefund struct {
+	AlipayTradeRefundResponse struct {
+		Code                 string  `json:"code"`
+		Msg                  string  `json:"msg"`
+		TradeNo              string  `json:"trade_no"`
+		OutTradeNo           string  `json:"out_trade_no"`
+		BuyerLogonId         string  `json:"buyer_logon_id"`
+		FundChange           string  `json:"fund_change"`
+		RefundFee            float64 `json:"refund_fee"`
+		RefundDetailItemList []struct {
+			FundChannel string  `json:"fund_channel"`
+			Amount      int     `json:"amount"`
+			RealAmount  float64 `json:"real_amount"`
+			FundType    string  `json:"fund_type"`
+		} `json:"refund_detail_item_list"`
+		StoreName            string `json:"store_name"`
+		BuyerUserId          string `json:"buyer_user_id"`
+		SendBackFee          string `json:"send_back_fee"`
+		RefundHybAmount      string `json:"refund_hyb_amount"`
+		RefundChargeInfoList []struct {
+			RefundChargeFee        float64 `json:"refund_charge_fee"`
+			SwitchFeeRate          string  `json:"switch_fee_rate"`
+			ChargeType             string  `json:"charge_type"`
+			RefundSubFeeDetailList []struct {
+				RefundChargeFee float64 `json:"refund_charge_fee"`
+				SwitchFeeRate   string  `json:"switch_fee_rate"`
+			} `json:"refund_sub_fee_detail_list"`
+		} `json:"refund_charge_info_list"`
+	} `json:"alipay_trade_refund_response"`
+	Sign string `json:"sign"`
+}
diff --git a/pay/alipay.go b/pay/alipay.go
index de70fe1..f44b7d4 100644
--- a/pay/alipay.go
+++ b/pay/alipay.go
@@ -415,3 +415,27 @@ func checkPublicParam(a *alipay.Client, bm gopay.BodyMap) {
 		bm.Set("auth_token", a.AuthToken)
 	}
 }
+
+//原路退回
+func AlipayTradeRefund(args map[string]string) (*md.AlipayTradeRefund, error) {
+	client := Comm(args)
+	if client == nil {
+		return nil, errors.New("获取失败")
+	}
+	//请求参数
+	bm := make(gopay.BodyMap)
+	bm.SetBodyMap("biz_content", func(bz gopay.BodyMap) {
+		bz.Set("out_trade_no", args["out_trade_no"])
+		bz.Set("refund_amount", args["refund_amount"])
+		bz.Set("refund_reason", args["refund_reason"])
+		bz.Set("out_request_no", args["out_request_no"])
+	})
+	var aliPsp md.AlipayTradeRefund
+	v2, err := PostAliPayAPISelfV2(client, bm, "alipay.trade.refund", &aliPsp)
+	if err != nil {
+		xlog.Error(err)
+		return nil, err
+	}
+	res := v2.(*md.AlipayTradeRefund)
+	return res, nil
+}