diff --git a/src/windows/LoginDialog.cpp b/src/windows/LoginDialog.cpp
index 018df13..6b6d89e 100644
--- a/src/windows/LoginDialog.cpp
+++ b/src/windows/LoginDialog.cpp
@@ -5,6 +5,7 @@
 #include <QDesktopWidget>
 #include <QToolButton>
 #include <QtWidgets/QLabel>
+#include <QTimer>
 
 #include "event/EventCenter.h"
 #include "dialogs/DialogManager.h"
@@ -13,6 +14,12 @@
 #include "json/jsonobject.h"
 #include "components/ULineEdit.h"
 
+namespace
+{
+    const int LOGIN_LOCK_COUNT = 3;
+    const int LOGIN_LOCK_MINUTIES = 1;
+}
+
 LoginDialog::LoginDialog(QWidget* aParent)
     : QDialog(aParent)
     , mVMainLayout(new QVBoxLayout(this))
@@ -27,11 +34,15 @@ LoginDialog::LoginDialog(QWidget* aParent)
     , mErrorMessage(new QLabel(this))
     , mIsRunning(false)
     , mHideClickCount(0)
+    , mLoginFailedCount(0)
+    , mLoginFailedTimer(new QTimer(this))
 {
     initializeAllWidget();
     setWindowFlags(windowFlags() | Qt::Window | Qt::FramelessWindowHint | Qt::WindowSystemMenuHint| Qt::BypassWindowManagerHint);
     setGeometry(QApplication::desktop()->screenGeometry());
     mAccountEdit->setText(JsonObject::Instance()->defaultUser());
+    mLoginFailedTimer->setSingleShot(true);
+    connect(mLoginFailedTimer, &QTimer::timeout, this, &LoginDialog::resetLoginFailedCount);
 }
 
 LoginDialog::~LoginDialog()
@@ -134,7 +145,6 @@ void LoginDialog::initializeLoginButton()
 void LoginDialog::initializeErrorMessage()
 {
     mErrorMessage->setObjectName("warn");
-    mErrorMessage->setText("Login failed, username or password error!");
     mErrorMessage->setVisible(false);
     mDialogContentsLayout->addWidget(mErrorMessage, 0, Qt::AlignCenter);
 }
@@ -148,6 +158,13 @@ void LoginDialog::clearInputData()
 
 void LoginDialog::doLogin()
 {
+    if(mLoginFailedCount >= LOGIN_LOCK_COUNT)
+    {
+        mErrorMessage->setText(QString(tr("Login locked. Please retry after %1 minutes.")).arg(LOGIN_LOCK_MINUTIES));
+        mErrorMessage->setVisible(true);
+        return;
+    }
+
     QString strUserCode = mAccountEdit->text();
     QString strPassWord = mPasswordEdit->text();
 
@@ -157,6 +174,7 @@ void LoginDialog::doLogin()
     QString encryptPwd = User::getEncryptedPassword(strPassWord);
     if (User::QueryUser(strUserCode, encryptPwd))
     {
+        resetLoginFailedCount();
         mErrorMessage->setVisible(false);
         accept();
         LOG_USER_OPERATION("Login Sucessful");
@@ -166,7 +184,13 @@ void LoginDialog::doLogin()
     else
     {
         LOG_USER_OPERATION(QString("Login Failed, User Name: %1").arg(strUserCode));
+        ++mLoginFailedCount;
+        mErrorMessage->setText(QString(tr("Login failed, username or password error! Remaining retries: %1")).arg(LOGIN_LOCK_COUNT - mLoginFailedCount));
         mErrorMessage->setVisible(true);
+        if(LOGIN_LOCK_COUNT - mLoginFailedCount == 0)
+        {
+            mLoginFailedTimer->start(LOGIN_LOCK_MINUTIES * 60000);
+        }
     }
 }
 
@@ -198,5 +222,8 @@ void LoginDialog::showEvent(QShowEvent* event)
     emit loginDialogShown();
 }
 
-
+void LoginDialog::resetLoginFailedCount()
+{
+    mLoginFailedCount = 0;
+}
 
diff --git a/src/windows/LoginDialog.h b/src/windows/LoginDialog.h
index 4dcb011..4b0dc90 100644
--- a/src/windows/LoginDialog.h
+++ b/src/windows/LoginDialog.h
@@ -33,6 +33,7 @@ signals:
 
 private slots:
     void doLogin();
+    void resetLoginFailedCount();
 
 private:
     void initializeAllWidget();
@@ -56,6 +57,8 @@ private:
     QLabel* mErrorMessage;
     bool mIsRunning;
     int mHideClickCount;
+    int mLoginFailedCount;
+    QTimer* mLoginFailedTimer;
 };
 
 #endif // LOGINDIALOG_H