diff --git a/app/enterprise/controller/Posts.php b/app/enterprise/controller/Posts.php
index 1801a55..f918473 100644
--- a/app/enterprise/controller/Posts.php
+++ b/app/enterprise/controller/Posts.php
@@ -507,7 +507,15 @@ class Posts extends BaseController
         $pid = $this->request->param('pid', 0);
         $reply_user_id = 0;
         if (!empty($pid)) {
-            $reply_user_id = Comment::where('id', $pid)->value('user_id');
+            $reply_comment = Comment::where('id', $pid)->field('user_id,type,relevance_id')->find();
+            if ($reply_comment) {
+                $reply_user_id = $reply_comment['user_id'];
+                if ($reply_comment['type'] != 1 || $reply_comment['relevance_id'] != $posts_id) {
+                    return error(lang('system.fail'));
+                }
+            } else {
+                return error(lang('system.fail'));
+            }
         }
 
         $info = [