diff --git a/app/Http/Controllers/Admin/CourseContentController.php b/app/Http/Controllers/Admin/CourseContentController.php
index 9a649b2..ebec3ef 100755
--- a/app/Http/Controllers/Admin/CourseContentController.php
+++ b/app/Http/Controllers/Admin/CourseContentController.php
@@ -86,7 +86,8 @@ class CourseContentController extends BaseController
                         }
                         // notnull搜索
                         if ($op == 'notnull') {
-                            $query->whereNotNull($key);
+                            // 不是null并且不是空数组
+                            $query->whereNotNull($key)->where($key, '!=', []);
                         }
                         // 范围搜索
                         if ($op == 'range') {