diff --git a/supply/category.go b/supply/category.go
index 0795cfc..b16decf 100644
--- a/supply/category.go
+++ b/supply/category.go
@@ -75,3 +75,14 @@ func (c *category) FindByIds(ctx context.Context, args ArgsCategoryFindByIds) (r
 	err = xClient.Call(ctx, "FindByIds", args, &result)
 	return
 }
+
+// GetThreeLevelAll @Title 获取全部三级分类
+func (c *category) GetThreeLevelAll(ctx context.Context) (result []ThirdCategoryItem, err error) {
+	xClient, err := client.GetClient(c)
+	if err != nil {
+		return
+	}
+	args := 0
+	err = xClient.Call(ctx, "GetThreeLevelAll", args, &result)
+	return
+}