diff --git a/app/Tasks/WebSocketDialogMsgTask.php b/app/Tasks/WebSocketDialogMsgTask.php
index c1e6e411f..ad4b06c44 100644
--- a/app/Tasks/WebSocketDialogMsgTask.php
+++ b/app/Tasks/WebSocketDialogMsgTask.php
@@ -189,7 +189,12 @@ class WebSocketDialogMsgTask extends AbstractTask
         if ($umengUserid) {
             $setting = Base::setting('appPushSetting');
             if ($setting['push'] === 'open') {
-                $umengTitle = User::userid2nickname($msg->userid);
+                if ($msg->userid == -1) {
+                    // AI 助手虚拟用户没有会员记录，取自定义昵称或默认名称
+                    $umengTitle = ($msg->msg['nickname'] ?? '') ?: Doo::translate('AI 助手');
+                } else {
+                    $umengTitle = User::userid2nickname($msg->userid);
+                }
                 $umengBody = WebSocketDialogMsg::previewMsg($msg);
                 if ($dialog->type == 'group') {
                     $umengBody = $umengTitle . ': ' . $umengBody;
diff --git a/language/original-api.txt b/language/original-api.txt
index 7984bd7ae..3ca53e9b9 100644
--- a/language/original-api.txt
+++ b/language/original-api.txt
@@ -993,3 +993,4 @@ LDAP 用户缺少邮箱属性，请联系管理员配置
 待办提醒
 你有一条待办到提醒时间啦
 发送者昵称最多不能超过20字
+AI 助手
diff --git a/resources/assets/js/pages/manage.vue b/resources/assets/js/pages/manage.vue
index c578066d2..a3f1c1729 100644
--- a/resources/assets/js/pages/manage.vue
+++ b/resources/assets/js/pages/manage.vue
@@ -1620,6 +1620,14 @@ export default {
             this.__notificationId = id;
             //
             const notificationFuncA = async (title, body) => {
+                if (userid === -1) {
+                    // AI 助手虚拟用户没有会员记录，取自定义昵称或默认名称
+                    if (dialog_type === 'group') {
+                        body = ((data.msg && data.msg.nickname) || this.$L('AI 助手')) + ': ' + body;
+                    }
+                    notificationFuncB(title, body, $A.mainUrl('images/avatar/default_assistant.png'))
+                    return;
+                }
                 const tempUser = await this.$store.dispatch("getUserData", userid).catch(_ => {});
                 if (dialog_type === 'group' && tempUser) {
                     body = tempUser.nickname + ': ' + body;