diff --git a/app/Admin/Controllers/ProductController.php b/app/Admin/Controllers/ProductController.php
index f05a262..4b72ab0 100644
--- a/app/Admin/Controllers/ProductController.php
+++ b/app/Admin/Controllers/ProductController.php
@@ -237,6 +237,9 @@ class ProductController extends AdminController
 					$form->model()->update(['single_deposit' => $form->single_deposit]);
 					return $form->response()->success('设置交易金成功');
 				}
+
+				//删除type，否则值会变为0
+				$form->deleteInput('type');
 			}
 
 			//特殊字段处理