diff --git a/src/Channels/WechatTemplateChannel.php b/src/Channels/WechatTemplateChannel.php
index 3e01b63..fa8f13a 100644
--- a/src/Channels/WechatTemplateChannel.php
+++ b/src/Channels/WechatTemplateChannel.php
@@ -23,7 +23,7 @@ public function send($notifiable, Notification $notification)
         $message = $notification->{'to' . Str::studly($this->channel)}($notifiable);
         if ($message instanceof WechatTemplateMessage && ! Arr::get($message->getMessage(), 'touser')) {
             $message->to($notifiable->routeNotificationFor($this->channel, $notification));
-        } elseif ($message instanceof WechatWorkMessage && empty($message->to)) {
+        } elseif ($message instanceof WechatWorkMessage && empty($message->getToUser())) {
             $message->toUser($notifiable->routeNotificationFor($this->channel, $notification));
         }
         return $message->send();
diff --git a/src/Messages/WechatWorkMessage.php b/src/Messages/WechatWorkMessage.php
index faecd8d..06ea354 100644
--- a/src/Messages/WechatWorkMessage.php
+++ b/src/Messages/WechatWorkMessage.php
@@ -13,5 +13,9 @@ public function __construct($app)
         parent::__construct($app);
     }
 
+    public function getToUser()
+    {
+        return $this->to;
+    }
 }