diff --git a/app/Models/WebSocketDialogMsg.php b/app/Models/WebSocketDialogMsg.php
index 792918766..721e21bda 100644
--- a/app/Models/WebSocketDialogMsg.php
+++ b/app/Models/WebSocketDialogMsg.php
@@ -23,6 +23,7 @@ use Illuminate\Database\Eloquent\SoftDeletes;
  * @property string|null $key 搜索关键词
  * @property int|null $read 已阅数量
  * @property int|null $send 发送数量
+ * @property int|null $reply_num 有多少条回复
  * @property int|null $reply_id 回复ID
  * @property \Illuminate\Support\Carbon|null $created_at
  * @property \Illuminate\Support\Carbon|null $updated_at
@@ -44,6 +45,7 @@ use Illuminate\Database\Eloquent\SoftDeletes;
  * @method static \Illuminate\Database\Eloquent\Builder|WebSocketDialogMsg whereMsg($value)
  * @method static \Illuminate\Database\Eloquent\Builder|WebSocketDialogMsg whereRead($value)
  * @method static \Illuminate\Database\Eloquent\Builder|WebSocketDialogMsg whereReplyId($value)
+ * @method static \Illuminate\Database\Eloquent\Builder|WebSocketDialogMsg whereReplyNum($value)
  * @method static \Illuminate\Database\Eloquent\Builder|WebSocketDialogMsg whereSend($value)
  * @method static \Illuminate\Database\Eloquent\Builder|WebSocketDialogMsg whereType($value)
  * @method static \Illuminate\Database\Eloquent\Builder|WebSocketDialogMsg whereUpdatedAt($value)
@@ -287,6 +289,10 @@ class WebSocketDialogMsg extends AbstractModel
             $deleteRead = WebSocketDialogMsgRead::whereMsgId($this->id)->whereNull('read_at')->delete();    // 未阅读记录不需要软删除，直接删除即可
             $this->delete();
             //
+            if ($this->reply_id > 0) {
+                self::whereId($this->reply_id)->decrement('reply_num');
+            }
+            //
             $last_msg = null;
             if ($this->webSocketDialog) {
                 $last_msg = WebSocketDialogMsg::whereDialogId($this->dialog_id)->orderByDesc('id')->first();
@@ -471,6 +477,9 @@ class WebSocketDialogMsg extends AbstractModel
             'msg' => $msg,
             'read' => 0,
         ]);
+        if ($reply_id > 0) {
+            self::whereId($reply_id)->increment('reply_num');
+        }
         AbstractModel::transaction(function () use ($dialogMsg) {
             $dialog = WebSocketDialog::find($dialogMsg->dialog_id);
             if (empty($dialog)) {
diff --git a/database/migrations/2022_06_24_205033_add_web_socket_dialog_msgs_reply_num.php b/database/migrations/2022_06_24_205033_add_web_socket_dialog_msgs_reply_num.php
new file mode 100644
index 000000000..522f48f29
--- /dev/null
+++ b/database/migrations/2022_06_24_205033_add_web_socket_dialog_msgs_reply_num.php
@@ -0,0 +1,49 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class AddWebSocketDialogMsgsReplyNum extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        $isAdd = false;
+        Schema::table('web_socket_dialog_msgs', function (Blueprint $table) use (&$isAdd) {
+            if (!Schema::hasColumn('web_socket_dialog_msgs', 'reply_num')) {
+                $isAdd = true;
+                $table->bigInteger('reply_num')->nullable()->default(0)->after('send')->comment('有多少条回复');
+            }
+        });
+        if ($isAdd) {
+            \App\Models\WebSocketDialogMsg::select(['reply_id'])
+                ->distinct()
+                ->where('reply_id', '>', 0)
+                ->chunk(100, function ($lists) {
+                    /** @var \App\Models\WebSocketDialogMsg $item */
+                    foreach ($lists as $item) {
+                        \App\Models\WebSocketDialogMsg::whereId($item->reply_id)->update([
+                            'reply_num' => \App\Models\WebSocketDialogMsg::whereReplyId($item->reply_id)->count()
+                        ]);
+                    }
+                });
+        }
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('web_socket_dialog_msgs', function (Blueprint $table) {
+            $table->dropColumn("reply_num");
+        });
+    }
+}