diff --git a/app/Admin/Controllers/CategoryController.php b/app/Admin/Controllers/CategoryController.php
index 972af65..df4c522 100644
--- a/app/Admin/Controllers/CategoryController.php
+++ b/app/Admin/Controllers/CategoryController.php
@@ -2,7 +2,6 @@
 
 namespace App\Admin\Controllers;
 
-use App\Common\UserStatus;
 use App\Models\Category;
 use Dcat\Admin\Form;
 use Dcat\Admin\Grid;
@@ -73,10 +72,15 @@ class CategoryController extends AdminController
     protected function form()
     {
         return Form::make(new Category(), function (Form $form) {
+			$options = Category::selectOptions(fn($query) => $query->where('agent_id', 0));
+
             $form->display('id');
-            $form->select('pid')->options(Category::selectOptions());
-            $form->text('name');
+            $form->select('pid')->options($options)->required();
+            $form->text('name')->required();
             $form->text('sort')->default(255);
+        })->saving(function (Form $form) {
+        	//后台管理员的agent_id为0
+			$form->agent_id = 0;
         });
     }
 }
diff --git a/app/Models/Category.php b/app/Models/Category.php
index 71d5f4d..74d2503 100644
--- a/app/Models/Category.php
+++ b/app/Models/Category.php
@@ -3,7 +3,6 @@
 namespace App\Models;
 
 use Dcat\Admin\Traits\ModelTree;
-use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class Category extends BaseModel
@@ -25,9 +24,4 @@ class Category extends BaseModel
 	//覆盖父类，不按id desc排序
 	protected static function booted() { }
 
-	public static function selectOptions(\Closure $closure = null)
-	{
-		$options = (new static())->withQuery($closure)->buildSelectOptions();
-		return collect($options)->all();
-	}
 }