diff --git a/app/admin/controller/Works/WorksType.php b/app/admin/controller/Works/WorksType.php
index 3c49b2a..a691715 100644
--- a/app/admin/controller/Works/WorksType.php
+++ b/app/admin/controller/Works/WorksType.php
@@ -35,37 +35,39 @@ class WorksType extends BaseController
             ->order('works_type_order')
             ->column('works_type_guid');
 
-        $works_type  = ModelWorksType::whereOr([
-            [["a.works_type_guid", 'in', $works_type_guids]],
-            [["a.works_type_ancestors_guid", 'REGEXP', implode('|', $works_type_guids)]],
-        ])
-            ->where([['b.works_type_delete_time', 'NULL', null]])
-            ->field([
-                'a.works_type_id',
-                'a.works_type_guid',
-                'a.works_type_name',
-                'a.works_type_order',
-                'a.works_type_parent_guid',
-                'a.works_type_ancestors_guid',
-                'b.works_type_name' => "works_type_parent_name",
-            ])->alias('a')
-            ->leftjoin('works_type b', 'a.works_type_parent_guid = b.works_type_guid')
-            ->order('works_type_order')
-            ->select()
-            ->toArray();
-
-        $Traverse = new Traverse('works_type_guid', 'works_type_parent_guid');
-        $works_type_tree = $Traverse->tree($works_type, '0', function ($v) {
-            return [
-                'works_type_name' => $v['works_type_name'],
-                'works_type_parent_name' => $v['works_type_parent_name'],
-                'works_type_guid' => $v['works_type_guid'],
-                'works_type_parent_guid' => $v['works_type_parent_guid'],
-                'works_type_ancestors_guid' => $v['works_type_ancestors_guid'],
-                'works_type_order' => $v['works_type_order'],
-            ];
-        });
+        $works_type_tree = [];
+        if ($works_type_guids) {
+            $works_type  = ModelWorksType::whereOr([
+                [["a.works_type_guid", 'in', $works_type_guids]],
+                [["a.works_type_ancestors_guid", 'REGEXP', implode('|', $works_type_guids)]],
+            ])
+                ->where([['b.works_type_delete_time', 'NULL', null]])
+                ->field([
+                    'a.works_type_id',
+                    'a.works_type_guid',
+                    'a.works_type_name',
+                    'a.works_type_order',
+                    'a.works_type_parent_guid',
+                    'a.works_type_ancestors_guid',
+                    'b.works_type_name' => "works_type_parent_name",
+                ])->alias('a')
+                ->leftjoin('works_type b', 'a.works_type_parent_guid = b.works_type_guid')
+                ->order('works_type_order')
+                ->select()
+                ->toArray();
 
+            $Traverse = new Traverse('works_type_guid', 'works_type_parent_guid');
+            $works_type_tree = $Traverse->tree($works_type, '0', function ($v) {
+                return [
+                    'works_type_name' => $v['works_type_name'],
+                    'works_type_parent_name' => $v['works_type_parent_name'],
+                    'works_type_guid' => $v['works_type_guid'],
+                    'works_type_parent_guid' => $v['works_type_parent_guid'],
+                    'works_type_ancestors_guid' => $v['works_type_ancestors_guid'],
+                    'works_type_order' => $v['works_type_order'],
+                ];
+            });
+        }
         return msg(0, "获取作品类型列表成功!", [
             'data' => $works_type_tree,
             'count' => ModelWorksType::where('works_type_parent_guid', '0')->count()