diff --git a/rpc/error.go b/rpc/error.go
index 663865e..4592d5d 100644
--- a/rpc/error.go
+++ b/rpc/error.go
@@ -23,6 +23,7 @@ const (
 	ErrorAfterServiceError       Error = 11017 // 售后单错误
 	ErrorAfterServiceCloseError  Error = 11018 // 售后已关闭
 	ErrorAfterServiceFinishError Error = 11019 // 售后已完成
+	ErrorOrderCancelError        Error = 11020 // 订单取消失败
 )
 
 var ErrorCodes = map[Error]string{
@@ -45,6 +46,7 @@ var ErrorCodes = map[Error]string{
 	ErrorAfterServiceError:       "售后单错误",
 	ErrorAfterServiceCloseError:  "售后已关闭",
 	ErrorAfterServiceFinishError: "售后已完成",
+	ErrorOrderCancelError:        "订单取消失败",
 }
 
 func (e Error) Error() string {
diff --git a/supply/channel/order.go b/supply/channel/order.go
index 98aa411..e5de402 100644
--- a/supply/channel/order.go
+++ b/supply/channel/order.go
@@ -121,14 +121,19 @@ func (o *order) Close(ctx context.Context, channelId string, orderSn string) (er
 	return xClient.Call(context.WithValue(ctx, share.ReqMetaDataKey, map[string]string{"channelId": channelId}), "Close", orderSn, &reply)
 }
 
+type ArgsOrderChannel struct {
+	OrderSn string // 订单编号
+	Reason  string // 取消原因
+}
+
 // Cancel @Title 订单取消
-func (o *order) Cancel(ctx context.Context, channelId string, orderSn string) (err error) {
+func (o *order) Cancel(ctx context.Context, channelId string, args ArgsOrderChannel) (err error) {
 	reply := 0
 	xClient, err := client.GetClient(o)
 	if err != nil {
 		return
 	}
-	return xClient.Call(context.WithValue(ctx, share.ReqMetaDataKey, map[string]string{"channelId": channelId}), "Cancel", orderSn, &reply)
+	return xClient.Call(context.WithValue(ctx, share.ReqMetaDataKey, map[string]string{"channelId": channelId}), "Cancel", args, &reply)
 }
 
 type OrderListsSearch struct {
diff --git a/supply/interface/order.go b/supply/interface/order.go
index bd8a289..554dde8 100644
--- a/supply/interface/order.go
+++ b/supply/interface/order.go
@@ -15,12 +15,16 @@ type OrderInterface interface {
 	// Close @Title 关闭订单
 	Close(ctx context.Context, orderSn string, reply *int) error
 	// Cancel @Title 取消订单
-	Cancel(ctx context.Context, orderSn string, reply *int) error
+	Cancel(ctx context.Context, args ArgsOrderCancel, reply *int) error
 	// Trajectory @Title 物流轨迹
 	Trajectory(ctx context.Context, orderSn string, reply *[]ReplyTrajectory) error
 	// Finish @Title 确认收货
 	Finish(ctx context.Context, orderSn string, reply *int) error
 }
+type ArgsOrderCancel struct {
+	OrderSn string // 订单编号
+	Reason  string // 取消原因
+}
 type ArgsOrderFreightFee struct {
 	Skus    []OrderFreightFeeSkuItem // 商品信息
 	Address string                   // 地址