diff --git a/src/device/DeviceManager.cpp b/src/device/DeviceManager.cpp
index ec4a28d..ea4a603 100644
--- a/src/device/DeviceManager.cpp
+++ b/src/device/DeviceManager.cpp
@@ -36,6 +36,7 @@ namespace
 {
     const int PREVIEW_IMAGE_WH = 140;
     const unsigned int GET_TEMPERATURE_TIME = 60000;
+    const int SHUT_DOWN_TIMEOUT = 180000;//3 minitues
     const QString DEFAULT_DMS_START_FAILED = "Dms start failed.";
     const QString RECON_TRANSFER_PATH = "/home/krad/TestStore";
 
@@ -101,7 +102,7 @@ void DeviceManager::initDevice()
     // preview
     connect(EventCenter::Default(), &EventCenter::RequestPreviewScan,this, &DeviceManager::startPreview);
     //shutdown
-    connect(EventCenter::Default(), &EventCenter::RequestShutdown, this, &DeviceManager::shutdown);
+    connect(EventCenter::Default(), &EventCenter::RequestShutdown, this, &DeviceManager::shutdownDms);
     //Drainage
     connect(EventCenter::Default(), &EventCenter::RequestDrainage, this, [this](QObject* sender, QObject* detail)
     {
@@ -126,7 +127,10 @@ void DeviceManager::initDevice()
     mGetSoftwareVersionAction = new DmsAsyncAction(USRV_INFOCFG, ACT_IFCFG_VERINFO, this,"responseGetSoftwareVersion(const QString&)", this);
     mGetDeviceTemperatureAction = new DmsAsyncAction(USRV_SCAN, ACT_SCAN_TEMP, this, "responseGetDeviceTemperature(const QString&)", this);
     mStopTransferAction = new DmsAsyncAction(USRV_XFR, ACT_XFR_STOP, this, "responseStopTransfer(const QString&)", this);
+    mShutDownAction = new DmsAsyncAction(USRV_CONTROL, ACT_CTL_PWRDOWN, this, "responseShutDown(const QString&)", this);
+    mShutDownAction->setTimeoutInterval(SHUT_DOWN_TIMEOUT);
     connect(mGetScanProgressAction, &DmsAsyncAction::timeout, this, &DeviceManager::scanTimeout);
+    connect(mShutDownAction, &DmsAsyncAction::timeout, this, &DeviceManager::shutdownDmsFailed);
 
 
     //dmsInfoReceiverThread
@@ -600,6 +604,10 @@ void DeviceManager::processReceiveDMSInfoResult(int aServerID, int aActionID, co
         case ACT_CTL_PUMP:
             emit responsePumpControl(aContents);
             break;
+        case ACT_CTL_PWRDOWN:
+            emit responseShutDown(aContents);
+            processShutDownDms(aContents);
+            break;
         }
         break;
     default:
@@ -731,14 +739,42 @@ void DeviceManager::getScanProcess()
     mGetScanProgressAction->execute();
 }
 
-void DeviceManager::shutdown()
+void DeviceManager::shutdownDms()
 {
     if(mIsTransfering)
     {
-        QString msg = "Data is currently being transmitted, please shut down later.";
+        QString msg = tr("Data is currently being transmitted, please shut down later.");
         THROW_ERROR(msg);
+        return;
     }
-    QProcess::startDetached("shutdown", QStringList() << "-h" << "now");
+
+    if(!mShutDownAction->execute())
+    {
+        QString msg = tr("Shut down failed, please push emergency button to shutdown.");
+        THROW_ERROR(msg);
+        return;
+    }
+
+    AppGlobalValues::setInProcessing(true);
+    emit shutdownDmsSended();
+}
+
+void DeviceManager::processShutDownDms(const QString& aResponse)
+{
+    QJsonObject jsonObj = toJsonObject(aResponse);
+    if(jsonObj.contains("code") && jsonObj["code"].toInt() == 0)
+    {
+        shutdownOperationSystem();
+        return;
+    }
+    AppGlobalValues::setInProcessing(false);
+    emit shutdownDmsFailed();
+}
+
+void DeviceManager::shutdownOperationSystem()
+{
+    qDebug()<< "shut down OS";
+    //QProcess::startDetached("shutdown", QStringList() << "-h" << "now");
 }
 
 void DeviceManager::insertEmptyScanRecord()
diff --git a/src/device/DeviceManager.h b/src/device/DeviceManager.h
index 3066923..42519ed 100644
--- a/src/device/DeviceManager.h
+++ b/src/device/DeviceManager.h
@@ -91,7 +91,8 @@ private:
      */
     void startScan(const QString& json, bool empty = false);
     void startPreview();
-    void shutdown();
+    void shutdownDms();
+    void shutdownOperationSystem();
 
 //-----------------new
     DeviceStatus getDeviceStatus();
@@ -115,6 +116,7 @@ private:
     void processGetSoftwareVersion(const QString& aSoftwareVersion);
     void processDeviceTemperature(const QString& aResponseTemperature);
     void processTransferProgress(const QString& aProgress);
+    void processShutDownDms(const QString& aResponse);
 
     void insertEmptyScanRecord();
     void insertScanRecord();
@@ -150,6 +152,7 @@ signals:
     void responseSetSimulatorMode(const QString& aResponse);
     void responseSetHeartBeat(const QString& aResponese);
     void responseStopTransfer(const QString& aResponse);
+    void responseShutDown(const QString& aResponse);
     //Recon
     void createEmptyScanToRecon(const QString& aScanID, const QString& aPath);
     void createScanToRecon(const QString& aScanID, const QString& aPatientID, const QString& aReferenceID, const QString& aPath);
@@ -161,6 +164,8 @@ signals:
     void transferStatusUpdated();
     void startPreviewScanResult(bool aIsSucessful);
     void startPumpControlResult(bool aIsSucessful);
+    void shutdownDmsSended();
+    void shutdownDmsFailed();
 
 
 private:
@@ -202,6 +207,7 @@ private:
     DmsAsyncAction* mGetScanProgressAction = nullptr;
     DmsAsyncAction* mGetSoftwareVersionAction = nullptr;
     DmsAsyncAction* mStopTransferAction = nullptr;
+    DmsAsyncAction* mShutDownAction = nullptr;
 
 };
 
diff --git a/src/device/DmsAsyncAction.cpp b/src/device/DmsAsyncAction.cpp
index 98c03f1..75f9f23 100644
--- a/src/device/DmsAsyncAction.cpp
+++ b/src/device/DmsAsyncAction.cpp
@@ -18,6 +18,7 @@ DmsAsyncAction::DmsAsyncAction(int aServerId, int aActionId, QObject* aObject, c
     , mSendData()
 {
     mTimer->setSingleShot(true);
+    mTimer->setInterval(TIMEOUT_MSEC);
     connect(mTimer, &QTimer::timeout, this, &DmsAsyncAction::sendTimeoutSignal);
     connect(mObject, ("2" + mResponseSignal).toStdString().c_str(), mTimer, SLOT(stop()));
 }
@@ -36,7 +37,7 @@ bool DmsAsyncAction::execute()
     {
         return false;
     }
-    mTimer->start(TIMEOUT_MSEC);
+    mTimer->start();
     return true;
 }
 
@@ -44,3 +45,8 @@ void DmsAsyncAction::sendTimeoutSignal()
 {
     emit timeout();
 }
+
+void DmsAsyncAction::setTimeoutInterval(int aMsec)
+{
+    mTimer->setInterval(aMsec);
+}
diff --git a/src/device/DmsAsyncAction.h b/src/device/DmsAsyncAction.h
index e5f4b97..0077ae2 100644
--- a/src/device/DmsAsyncAction.h
+++ b/src/device/DmsAsyncAction.h
@@ -26,6 +26,7 @@ public:
 
     bool execute();
     void setSendData(const QString& aData);
+    void setTimeoutInterval(int aMsec);
 
 signals:
     void timeout();
diff --git a/src/dialogs/DialogManager.cpp b/src/dialogs/DialogManager.cpp
index ab34a20..921de70 100644
--- a/src/dialogs/DialogManager.cpp
+++ b/src/dialogs/DialogManager.cpp
@@ -352,6 +352,11 @@ void DialogManager::raiseDeviceError(QObject *parent, QObject *msg) {
     clearMessageDialog();
     auto dialog = new GUIMessageDialog(mTopWidget);
 
+    if(mFunctionDialog->isRunning())
+    {
+        dialog->setWindowFlags(dialog->windowFlags() | Qt::WindowStaysOnTopHint | Qt::BypassWindowManagerHint );
+    }
+
     if (nullptr != mTopWidget && mTopWidget->inherits("GUIMessageDialog"))
     {
         GUIMessageDialog* parent = qobject_cast<GUIMessageDialog*>(mTopWidget);
diff --git a/src/stylesheet/Dark2.css b/src/stylesheet/Dark2.css
index b7fad1e..0abe568 100644
--- a/src/stylesheet/Dark2.css
+++ b/src/stylesheet/Dark2.css
@@ -72,6 +72,12 @@ QLabel {
     font-size: 16px;
 }
 
+QLabel#Shutdown {
+    color: #fcfcfc;
+    font-weight: bold;
+    font-size: 26px;
+}
+
 QLineEdit {
     min-height: 36px;
     max-height: 36px;
@@ -999,4 +1005,4 @@ QListView#LeftBtnBar::item
 
 QWidget#settingContentWidget QWidget{
     font-size:26px;
-}
\ No newline at end of file
+}
diff --git a/src/windows/MainWindow.cpp b/src/windows/MainWindow.cpp
index c03b7e0..3d8fb38 100644
--- a/src/windows/MainWindow.cpp
+++ b/src/windows/MainWindow.cpp
@@ -9,6 +9,7 @@
 #include <QDockWidget>
 
 #include "InitializeWidget.h"
+#include "ShutdownWidget.h"
 #include "event/EventCenter.h"
 #include "forms/TabFormWidget.h"
 #include "forms/recon/ReconFormWidget.h"
@@ -31,6 +32,7 @@ MainWindow::MainWindow(QWidget* aParent)
     , mDebugMessageConsole(nullptr)
     , mTabWidget(new QTabWidget(this))
     , mInitializWidget(new InitializeWidget(this))
+    , mShutdownWidget(new ShutdownWidget(nullptr))
     , mAdminTabIndex(-1)
     , mThread(nullptr)
     , mIsDebugMode(false)
@@ -50,6 +52,8 @@ MainWindow::MainWindow(QWidget* aParent)
     connect(EventCenter::Default(), &EventCenter::RequestScreenSaver, this, &MainWindow::requestScreenSaver);
     connect(DeviceManager::Default(), &DeviceManager::initializeFinished, this, &MainWindow::requestLogin);
     connect(DeviceManager::Default(), &DeviceManager::initializeProgress, mInitializWidget, &InitializeWidget::setMessage);
+    connect(DeviceManager::Default(), &DeviceManager::shutdownDmsSended, this, &MainWindow::showShutdownWidget);
+    connect(DeviceManager::Default(), &DeviceManager::shutdownDmsFailed, this, &MainWindow::processShutdownDmsFailed);
     connect(DialogManager::Default(), &DialogManager::loginDialogShown, this, [this]()
     {
         mInitializWidget->setVisible(false);
@@ -64,6 +68,7 @@ MainWindow::~MainWindow()
     mThread->terminate();
     mThread->deleteLater();
     delete mUI;
+    delete mShutdownWidget;
 }
 
 //------Layout-----------------------------------------------------------------
@@ -91,6 +96,7 @@ void MainWindow::initializeLayout()
     layout->addWidget(mInitializWidget);
 
     mTabWidget->setVisible(false);
+    mShutdownWidget->setVisible(false);
 }
 
 void MainWindow::initializeTabWidget()
@@ -114,6 +120,17 @@ void MainWindow::reloadLanguage() {
     mTabWidget->setTabText(3, tr("Settings"));
 }
 
+void MainWindow::showShutdownWidget()
+{
+    mShutdownWidget->setVisible(true);
+}
+
+void MainWindow::processShutdownDmsFailed()
+{
+    mShutdownWidget->setVisible(false);
+    triggerError(tr("Shut down failed, please push emergency button to shutdown."));
+}
+
 void MainWindow::switchToScanTab() { mTabWidget->setCurrentIndex(1); }
 
 void MainWindow::centerWidgetHide()
diff --git a/src/windows/MainWindow.h b/src/windows/MainWindow.h
index 27b5dac..d03cf99 100644
--- a/src/windows/MainWindow.h
+++ b/src/windows/MainWindow.h
@@ -19,6 +19,7 @@ class QSwipeGesture;
 class QPanGesture;
 class QDockWidget;
 class InitializeWidget;
+class ShutdownWidget;
 
 class MainWindow : public QMainWindow
 {
@@ -53,6 +54,8 @@ private:
     void swipeTriggered(QSwipeGesture* aSwipeGesture);
     void panTriggered(QPanGesture* aPanGesture);
     void loadStyleSheet(const QString& aSheetName);
+    void showShutdownWidget();
+    void processShutdownDmsFailed();
 
 private:
     Ui::MainWindow* mUI;
@@ -60,6 +63,8 @@ private:
     QTextEdit* mDebugMessageConsole;
     QTabWidget* mTabWidget;
     InitializeWidget* mInitializWidget;
+    ShutdownWidget* mShutdownWidget;
+
     int mAdminTabIndex;
     QThread* mThread;
     bool mIsDebugMode;
diff --git a/src/windows/ShutdownWidget.cpp b/src/windows/ShutdownWidget.cpp
new file mode 100644
index 0000000..bc0697f
--- /dev/null
+++ b/src/windows/ShutdownWidget.cpp
@@ -0,0 +1,31 @@
+#include "ShutdownWidget.h"
+
+#include "components/LoadingWidget.h"
+
+#include <QLabel>
+#include <QVBoxLayout>
+#include <QHBoxLayout>
+#include <QApplication>
+#include <QDesktopWidget>
+#include <QSpacerItem>
+
+
+ShutdownWidget::ShutdownWidget(QWidget* aParent)
+    : QWidget(aParent)
+    , mLoadingWidget(new LoadingWidget(this))
+    , mMessage(new QLabel(this))
+{
+    setGeometry(QApplication::desktop()->screenGeometry());
+    mLoadingWidget->setMaximumHeight(150);
+    mLoadingWidget->setMaxDiameter(16);
+    setWindowFlags( Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint | Qt::Tool  | Qt::BypassWindowManagerHint);
+    mMessage->setText(tr("shut down"));
+    mMessage->setAlignment(Qt::AlignHCenter | Qt::AlignTop);
+    mMessage->setObjectName("Shutdown");
+    QVBoxLayout* layout = new QVBoxLayout(this);
+    layout->addItem(new QSpacerItem(20, 300, QSizePolicy::Minimum, QSizePolicy::Preferred));
+    layout->addWidget(mLoadingWidget);
+    layout->addWidget(mMessage);
+    layout->setSpacing(50);
+}
+
diff --git a/src/windows/ShutdownWidget.h b/src/windows/ShutdownWidget.h
new file mode 100644
index 0000000..7c4fb56
--- /dev/null
+++ b/src/windows/ShutdownWidget.h
@@ -0,0 +1,20 @@
+#ifndef SHUTDOWNWIDGET_H
+#define SHUTDOWNWIDGET_H
+
+#include <QWidget>
+
+class QLabel;
+class LoadingWidget;
+
+class ShutdownWidget : public QWidget
+{
+    Q_OBJECT
+public:
+    ShutdownWidget(QWidget* aParent);
+
+private:
+    LoadingWidget* mLoadingWidget;
+    QLabel* mMessage;
+};
+
+#endif // SHUTDOWNWIDGET_H