diff --git a/app/controller/ArticleController.php b/app/controller/ArticleController.php
index 0c26961..d7cabdf 100644
--- a/app/controller/ArticleController.php
+++ b/app/controller/ArticleController.php
@@ -86,7 +86,7 @@ class ArticleController extends BaseController
         if(!in_array($data['status'], [1,2])){
             return json(['msg' => 'fail', 'data' => '只能编辑未就绪的文章', 'code' => 201], 201);
         }
-        if(strlen($param['title']) > 81){
+        if(isset($param['title']) && strlen($param['title']) > 81){
             return json(['msg' => 'fail', 'data' => '文章标题不能超过28个字', 'code' => 201], 201);
         }
         $updateData = [