diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 0f976a4..ae33c89 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -1,4 +1,4 @@
-#include "mainwindow.h"
+#include "mainwindow.h"
 #include "ui_mainwindow.h"
 #include <qtabwidget.h>
 #include <QSizePolicy>
@@ -9,6 +9,7 @@
 #include "ScanFormWidget.h"
 #include "guimessagedialog.h"
 #include "device/DeviceManager.h"
+#include "errorhandle/GUIErrorHandle.h"
 #include "loginwindow.h"
 #include <QTextEdit>
 #include <QScrollBar>
@@ -149,38 +150,10 @@ MainWindow::MainWindow(QWidget* parent) :
 
 	ui->centralWidget->setLayout(layout);
 	this->setWindowFlags(Qt::Window);
-	connect(EventCenter::Default(), &EventCenter::GUIErrorRaise, [=](QObject*, QObject* msg) {
-        QString str;
-        if (msg) {
-            str = *(QString *) msg;
-        } else {
-            str = "Something went error!";
-        }
-        if (str.isEmpty()) return;
-        //新模式，分级
-        if (str[1] == ' ') {
-            char c = str[0].toLower().toLatin1();
-            switch (c) {
-                //WARN 级别
-                case 'w': {
-                    char buff[4] = {0, 0, 0, 0};
-                    buff[0] = str[2].toLatin1();
-                    buff[1] = str[3].toLatin1();
-                    buff[2] = str[4].toLatin1();
-                    buff[3] = str[5].toLatin1();
-                    QByteArray bytes(buff);
-                    EventCenter::Default()->triggerEvent(GUIEvents::WarnStateFlagChange, nullptr,(QObject*)(&bytes));
-                    return;
-                }
-                //ERROR 级别
-                case 'e':
-                default:
-                    break;
-            }
-        }
+	connect(EventCenter::Default(), &EventCenter::DeviceErrorRaise, [=](QObject* parent, QObject* msg) {
         //默认旧模式
         if (!msgDialog) {
-            msgDialog = new GUIMessageDialog;
+            msgDialog = new GUIMessageDialog(this);
             msgDialog->setStyleSheet(style);
         }
         if (msg) {
@@ -191,8 +164,10 @@ MainWindow::MainWindow(QWidget* parent) :
         }
         msgDialog->stopLoading();
         msgDialog->showExitButton();
-//		msgDialog->showFullScreen();
-        if (msgDialog->isHidden())msgDialog->show();
+        if (msgDialog->isHidden()){
+            msgDialog->setWindowModality(Qt::NonModal);
+            msgDialog->exec();
+        }
     });
 	connect(EventCenter::Default(), &EventCenter::InvokeOperationStart, [=](QObject*, QObject* msg) {
         if (msgDialog){
@@ -239,6 +214,7 @@ MainWindow::MainWindow(QWidget* parent) :
     connect(EventCenter::Default(), &EventCenter::RequestLogin, [=](QObject*, QObject* msg) {
         this->requestLogin();
     });
+    GUIErrorHandle::Default()->init();
     DeviceManager::Default()->initDevice();
 	centerWidgetHide();
 }
diff --git a/src/tabformwidget.cpp b/src/tabformwidget.cpp
index f03feab..75a6258 100644
--- a/src/tabformwidget.cpp
+++ b/src/tabformwidget.cpp
@@ -1,6 +1,7 @@
 #include "tabformwidget.h"
 #include "ui_tabformwidget.h"
 #include <QDateTime>
+#include <src/components/RollingMessageWidget.h>
 #include "event/EventCenter.h"
 
 #if defined(_MSC_VER) && (_MSC_VER >= 1600) 
@@ -49,13 +50,18 @@ TabFormWidget::TabFormWidget(QWidget* parent) :
 		QString* s = (QString*)msg;
 		lockIcon->setText(QString("%1%2").arg(*s).arg(tr("°C")));
 	});
-    connect(EventCenter::Default(), &EventCenter::GlobalBannerMessage, [=](QObject*, QObject* msg) {
-        if (!msg) {
-            ui->systemMsgBar->setText("");
-            return;
-        }
-        QString* s = (QString*)msg;
-        ui->systemMsgBar->setText(*s);
+    QVBoxLayout* l = new QVBoxLayout(ui->widgetMsg);
+    ui->widgetMsg->setObjectName("need_border");
+    l->setMargin(0);
+	auto w = new RollingMessageWidget(this);
+	QStringList msgs;
+	msgs<<"message 1!"<<"message 2!"<<"message 3!"<<"message 4!"<<"message 5!";
+	QList<bool> visibleValues = {true,true,true,true,true};
+	w->setMessageList(msgs, visibleValues);
+	w->setObjectName("need_border");
+	l->addWidget(w);
+    connect(EventCenter::Default(), &EventCenter::WarnStateFlagChange,[=](QObject*, QObject* msg){
+
     });
 }
 
diff --git a/src/tabformwidget.ui b/src/tabformwidget.ui
index eeebe77..436d8d3 100644
--- a/src/tabformwidget.ui
+++ b/src/tabformwidget.ui
@@ -75,9 +75,12 @@
        </widget>
       </item>
       <item>
-       <widget class="QLabel" name="systemMsgBar">
-        <property name="text">
-         <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Message from DAQ and device.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+       <widget class="QWidget" name="widgetMsg" native="true">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
         </property>
        </widget>
       </item>