diff --git a/lib/fb_pay/fb_pay.go b/lib/fb_pay/fb_pay.go
index d551c9d..4fb0939 100644
--- a/lib/fb_pay/fb_pay.go
+++ b/lib/fb_pay/fb_pay.go
@@ -20,7 +20,18 @@ func GetOrderQrcodeByVendorSn(vendorSn string) *RequestParameters {
 	rp.Method = OrderQrcode
 	return &rp
 }
-
+func GetRefundByVendorSn(vendorSn string) *RequestParameters {
+	var rp RequestParameters
+	rp.VendorSn = vendorSn
+	rp.Method = Refund
+	return &rp
+}
+func GetRefundQueryByVendorSn(vendorSn string) *RequestParameters {
+	var rp RequestParameters
+	rp.VendorSn = vendorSn
+	rp.Method = RefundQuery
+	return &rp
+}
 func GetAggregateCodeByVendorSn(vendorSn string) *RequestParameters {
 	var rp RequestParameters
 	rp.VendorSn = vendorSn