diff --git a/platformapi/mtwmapi/retail.go b/platformapi/mtwmapi/retail.go
index f721ce23..b44f5c2b 100644
--- a/platformapi/mtwmapi/retail.go
+++ b/platformapi/mtwmapi/retail.go
@@ -112,6 +112,21 @@ type AppFoodResult4SellStatus struct {
 	Msg         string `json:"msg"`
 }
 
+type Param4UpdateCat struct {
+	CategoryCodeOrigin    string `json:"category_code_origin,omitempty"`
+	CategoryNameOrigin    string `json:"category_name_origin,omitempty"`
+	CategoryCode          string `json:"category_code,omitempty"`
+	SecondaryCategoryCode string `json:"secondary_category_code,omitempty"`
+	SecondaryCategoryName string `json:"secondary_category_name,omitempty"`
+	Sequence              int    `json:"sequence,omitempty"`
+	TargetLevel           string `json:"target_level,omitempty"`
+	TargetParentName      string `json:"target_parent_name,omitempty"`
+
+	TopFlag   string `json:"top_flag,omitempty"`
+	WeeksTime string `json:"weeks_time,omitempty"`
+	Period    string `json:"period,omitempty"`
+}
+
 // 美团分类没有ID，就以名字为唯一标识，不论级别都必须不能重名
 // name（和originName）的长度不能超过10个字符（字符，不是字节）
 // 创建一级分类，originName为空，name为新分类名，secondaryName为空
@@ -119,72 +134,24 @@ type AppFoodResult4SellStatus struct {
 // 创建二级分类，secondaryName为二级分类名，
 // 		（如果originName为空，同时创建一级分类，所以如果只是创建二级分类，originName与name要填一样的，此时sequence指的二级分类的sequence，一级分类的sequence为缺省值）
 // 修改二级分类，originName为二级分类名，name为二级分类新名，secondaryName为空
+// https://developer.waimai.meituan.com/home/docDetail/71
 // https://developer.waimai.meituan.com/home/questionDetail/4669
-func (a *API) RetailCatUpdate(poiCode, originName, name, secondaryName string, sequence int) (err error) {
-	params := map[string]interface{}{
-		KeyAppPoiCode:   poiCode,
-		"category_name": name,
-		"sequence":      sequence,
-	}
-	if originName != "" {
-		params["category_name_origin"] = originName
-	}
-	if secondaryName != "" {
-		params["secondary_category_name"] = secondaryName
-	}
-	_, err = a.AccessAPI("retailCat/update", false, params)
-	if err != nil {
-		if err2, ok := err.(*utils.ErrorWithCode); ok {
-			if err2.IntCode() == 833 {
-				return nil
-			}
+func (a *API) RetailCatUpdate(poiCode, catName string, updateParams *Param4UpdateCat) (err error) {
+	if updateParams != nil {
+		if updateParams.CategoryCodeOrigin != "" {
+			updateParams.CategoryNameOrigin = ""
 		}
 	}
-	return err
-}
-
-func (a *API) RetailCatUpdate2(poiCode, originCode, originName, code, name, secondCode, secondaryName string, sequence int) (err error) {
-	params := map[string]interface{}{
-		KeyAppPoiCode:   poiCode,
-		"category_name": name,
-		"sequence":      sequence,
-	}
-	if code != "" {
-		params["category_code"] = code
-	}
-	if secondCode != "" {
-		params["secondary_category_code"] = secondCode
-	}
-	if secondaryName != "" {
-		params["secondary_category_name"] = secondaryName
-	}
-
-	if originCode != "" {
-		params["category_code_origin"] = originCode
-	} else if originName != "" {
-		params["category_name_origin"] = originName
-	}
-
+	params := utils.Struct2MapByJson(updateParams)
+	params[KeyAppPoiCode] = poiCode
+	params["category_name"] = catName
 	_, err = a.AccessAPI("retailCat/update", false, params)
-	if err != nil {
-		if err2, ok := err.(*utils.ErrorWithCode); ok {
-			if err2.IntCode() == 833 {
-				return nil
-			}
-		}
-	}
 	return err
 }
 
-func (a *API) RetailCatDelete(poiCode, name string) (err error) {
-	_, err = a.AccessAPI("retailCat/delete", false, map[string]interface{}{
-		KeyAppPoiCode:   poiCode,
-		"category_name": name,
-	})
-	return err
-}
-
-func (a *API) RetailCatDelete2(poiCode, code, name string) (err error) {
+// 删除商品分类
+// 当分类下存在子级分类或商品时，不允许直接删除此分类。
+func (a *API) RetailCatDelete(poiCode, code, name string) (err error) {
 	params := map[string]interface{}{
 		KeyAppPoiCode: poiCode,
 	}
diff --git a/platformapi/mtwmapi/retail_test.go b/platformapi/mtwmapi/retail_test.go
index e6bbb9e2..709a4b0d 100644
--- a/platformapi/mtwmapi/retail_test.go
+++ b/platformapi/mtwmapi/retail_test.go
@@ -15,25 +15,29 @@ func TestRetailCatList(t *testing.T) {
 }
 
 func TestRetailCatUpdate(t *testing.T) {
-	// err := api.RetailCatUpdate(testPoiCode, "测试一级类别", "测试一级类别2", "", 2)
-	err := api.RetailCatUpdate(testPoiCode, "测试一级类别", "测试一级类别", "", 2)
+	err := api.RetailCatUpdate(testPoiCode, "测试一级类别", &Param4UpdateCat{
+		CategoryNameOrigin: "测试一级类别",
+		Sequence:           2,
+	})
 	if err != nil {
 		t.Fatal(err)
 	}
 }
 func TestRetailCatDelete(t *testing.T) {
 	var err error
-	err = api.RetailCatDelete(testPoiCode, utils.GetUpperUUID())
+	err = api.RetailCatDelete(testPoiCode, "", utils.GetUpperUUID())
 	if err == nil {
 		t.Fatal("should return error that can not find such cat")
 	}
 	uniqueCatName := "一二三四五六七八九十"
 	// uniqueCatName := "1234567890" //fmt.Sprintf("CAT%d", time.Now().Unix())
-	err = api.RetailCatUpdate(testPoiCode, "", uniqueCatName, "", 15)
+	err = api.RetailCatUpdate(testPoiCode, uniqueCatName, &Param4UpdateCat{
+		Sequence: 15,
+	})
 	if err != nil {
 		t.Fatal(err)
 	}
-	err = api.RetailCatDelete(testPoiCode, uniqueCatName)
+	err = api.RetailCatDelete(testPoiCode, "", uniqueCatName)
 	if err != nil {
 		t.Fatal(err)
 	}