diff --git a/platformapi/tao_vegetable/api_model.go b/platformapi/tao_vegetable/api_model.go
index 55475e59..76e51bdf 100644
--- a/platformapi/tao_vegetable/api_model.go
+++ b/platformapi/tao_vegetable/api_model.go
@@ -52,13 +52,13 @@ func CallBackResultSign(err error) *CallBackResult {
 		return &CallBackResult{
 			Success: true,
 			ErrCode: "SUCCESS",
-			ErrMsg:  err.Error(),
+			ErrMsg:  "",
 		}
 	}
 
 	return &CallBackResult{
 		Success: false,
 		ErrCode: "sign-check-failure",
-		ErrMsg:  "",
+		ErrMsg:  err.Error(),
 	}
 }
diff --git a/platformapi/tao_vegetable/order_afs.go b/platformapi/tao_vegetable/order_afs.go
index 2cf1d047..3e3f9832 100644
--- a/platformapi/tao_vegetable/order_afs.go
+++ b/platformapi/tao_vegetable/order_afs.go
@@ -95,6 +95,10 @@ func (a *API) UserApplyRefund(c *http.Request) (*UserApplyRefundCallBack, error)
 	if err != nil {
 		return nil, err
 	}
+
+	if len(data) == 0 {
+		return nil, err
+	}
 	var result *UserApplyRefundCallBack
 	if err := json.Unmarshal(data, result); err != nil {
 		return nil, err
@@ -108,6 +112,10 @@ func (a *API) UserCancelRefundApply(c *http.Request) (*UserCancelRefundApply, er
 	if err != nil {
 		return nil, err
 	}
+
+	if len(data) == 0 {
+		return nil, err
+	}
 	var result *UserCancelRefundApply
 	if err := json.Unmarshal(data, result); err != nil {
 		return nil, err
@@ -119,6 +127,9 @@ func (a *API) UserCancelRefundApply(c *http.Request) (*UserCancelRefundApply, er
 func (a *API) OnSaleRefundOrder(c *http.Request) (*OnSaleCancel, error) {
 	body, _ := ioutil.ReadAll(c.Body)
 
+	if len(body) == 0 {
+		return nil, nil
+	}
 	var onSaleOrder *OnSaleCancel
 	if err := json.Unmarshal(body, &onSaleOrder); err != nil {
 		return nil, err
@@ -132,6 +143,10 @@ func (a *API) RefundOrderFinish(c *http.Request) (*RefundOrderFinish, error) {
 	if err != nil {
 		return nil, err
 	}
+
+	if len(data) == 0 {
+		return nil, nil
+	}
 	var result *RefundOrderFinish
 	if err := json.Unmarshal(data, result); err != nil {
 		return nil, err