diff --git a/app/Constants/TalkMessageType.php b/app/Constants/TalkMessageType.php
index 83b30fe..b6d5365 100644
--- a/app/Constants/TalkMessageType.php
+++ b/app/Constants/TalkMessageType.php
@@ -9,13 +9,14 @@ namespace App\Constants;
  */
 class TalkMessageType
 {
-    const TEXT_MESSAGE         = 1;//文本消息
-    const FILE_MESSAGE         = 2;//文件消息
-    const FORWARD_MESSAGE      = 3;//会话消息
-    const CODE_MESSAGE         = 4;//代码消息
-    const VOTE_MESSAGE         = 5;//投票消息
-    const GROUP_NOTICE_MESSAGE = 6;//群组公告
-    const FRIEND_APPLY_MESSAGE = 7;//好友申请
-    const USER_LOGIN_MESSAGE   = 8;//登录通知
-    const GROUP_INVITE_MESSAGE = 9;//入群退群消息
+    const SYSTEM_TEXT_MESSAGE  = 0; //系统文本消息
+    const TEXT_MESSAGE         = 1; //文本消息
+    const FILE_MESSAGE         = 2; //文件消息
+    const FORWARD_MESSAGE      = 3; //会话消息
+    const CODE_MESSAGE         = 4; //代码消息
+    const VOTE_MESSAGE         = 5; //投票消息
+    const GROUP_NOTICE_MESSAGE = 6; //群组公告
+    const FRIEND_APPLY_MESSAGE = 7; //好友申请
+    const USER_LOGIN_MESSAGE   = 8; //登录通知
+    const GROUP_INVITE_MESSAGE = 9; //入群退群消息
 }
diff --git a/app/Service/TalkService.php b/app/Service/TalkService.php
index a719934..921e80f 100644
--- a/app/Service/TalkService.php
+++ b/app/Service/TalkService.php
@@ -81,6 +81,21 @@ class TalkService extends BaseService
         });
 
         $rows = $rowsSqlObj->orderBy('talk_records.id', 'desc')->limit($limit)->get()->toArray();
+
+        if ($record_id === 0 && $talk_type == TalkModeConstant::PRIVATE_CHAT) {
+            if (!di()->get(UserFriendService::class)->isFriend($user_id, $receiver_id, true)) {
+                array_unshift($rows, [
+                    'id'          => ($rows[0]['id'] ?? 0) + 1,
+                    'talk_type'   => TalkModeConstant::PRIVATE_CHAT,
+                    'msg_type'    => TalkMessageType::SYSTEM_TEXT_MESSAGE,
+                    'user_id'     => 0,
+                    'receiver_id' => $user_id,
+                    'content'     => '你与对方已解除好友关系，系统已禁止发送消息！',
+                    'created_at'  => date('Y-m-d H:i:s'),
+                ]);
+            }
+        }
+
         return di()->get(FormatMessageService::class)->handleChatRecords($rows);
     }
 
diff --git a/app/Service/UserFriendService.php b/app/Service/UserFriendService.php
index 07d1902..dd63d2c 100644
--- a/app/Service/UserFriendService.php
+++ b/app/Service/UserFriendService.php
@@ -36,6 +36,7 @@ class UserFriendService
     public function isFriend(int $user_id, int $friend_id, $is_mutual = false)
     {
         $isTrue1 = UsersFriend::where('user_id', $user_id)->where('friend_id', $friend_id)->where('status', 1)->exists();
+
         if ($is_mutual === false) {
             return $isTrue1;
         }