diff --git a/app/AdminAgent/Controllers/CategoryController.php b/app/AdminAgent/Controllers/CategoryController.php
index 1870ed6..ef56279 100644
--- a/app/AdminAgent/Controllers/CategoryController.php
+++ b/app/AdminAgent/Controllers/CategoryController.php
@@ -100,8 +100,11 @@ class CategoryController extends AdminController
 			//不允许编辑的字段
 			$form->ignore(['id', 'deleted_at']);
 
+			$form->hidden(['agent_id']);
 			$form->agent_id = Admin::user()->id;
-			$form->sort = $form->sort ?? 255;
+			if (array_key_exists('sort', $form->input())) {
+				$form->sort = $form->sort ?? 255;
+			}
 		})->deleting(function (Form $form) {
 			//不允许修改非自己的数据
 			if (array_filter($form->model()->toArray(), fn($v) => $v['agent_id'] != Admin::user()->id)) {