diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 0021e59..48b9caa 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -79,6 +79,7 @@ MainWindow::MainWindow(QWidget* parent) :
 	ui->centralWidget->setLayout(layout);
 	this->setWindowFlags(Qt::Window);
 	connect(EventCenter::Default(), &EventCenter::DeviceErrorRaise, [=](QObject* parent, QObject* msg) {
+	    if (!this->ui->centralWidget->isVisible()) return;
 		//默认旧模式
 		if (!msgDialog) {
 			msgDialog = new GUIMessageDialog(this);