diff --git a/app/Forms/ProductForm.php b/app/Forms/ProductForm.php
index 800de86..cd7482d 100755
--- a/app/Forms/ProductForm.php
+++ b/app/Forms/ProductForm.php
@@ -52,7 +52,7 @@ class ProductForm extends Form
                 'label' => false
             ]
         ]);
-
+        $this->add("factor_item_ids", Field::SELECT, ["label" => "统计价格因素", "rules" => "required", "attr" => ["multiple" => true, "data-plugin" => "select2"]]);
         $this->add('buttons', 'buttongroup', ["splitted" => true, "buttons" => [
             ["label" => "保存", "attr" => ["class" => "btn btn-primary mr-1", "type" => "submit"]],
             ["label" => "返回", "attr" => ["class" => "btn btn-light btn-back", "type" => "button"]]
diff --git a/app/Http/Controllers/Admin/ProductController.php b/app/Http/Controllers/Admin/ProductController.php
index 151d642..a0d2c74 100755
--- a/app/Http/Controllers/Admin/ProductController.php
+++ b/app/Http/Controllers/Admin/ProductController.php
@@ -91,7 +91,7 @@ class ProductController extends CommonController
             "model" => $vo
         ]);
         $form->add("_previous", "hidden", ["value" => (url()->previous())]);
-        $form->add("factor_item_ids", 'select', ["label" => "统计价格因素", "attr" => ["multiple" => true, "data-plugin" => "select2"],
+        $form->modify("factor_item_ids", 'select', ["label" => "统计价格因素", "attr" => ["multiple" => true, "data-plugin" => "select2"],
             "choices" => (new Factor())->where('product_id', $request->id)->get()->pluck("name", "id")->toArray()
         ]);
         return view($this->bladePath . ".create", compact("form", "project", "vo"));