diff --git a/src/controller/Broadcast.php b/src/controller/Broadcast.php
index 18e248d..8cf6bb8 100644
--- a/src/controller/Broadcast.php
+++ b/src/controller/Broadcast.php
@@ -67,7 +67,9 @@ class Broadcast extends Controller
                 }
                 unset($vo['to']);
             }
-            $vo['create_by'] = session('user.id');
+            if (empty($vo['id'])) {
+                $vo['create_by'] = session('user.id');
+            }
         } else {
             $this->depts = StaffDept::items();
             $this->types = NoticeBroadcast::types();