diff --git a/src/AlertDialog.cpp b/src/AlertDialog.cpp
new file mode 100644
index 0000000..749aa4e
--- /dev/null
+++ b/src/AlertDialog.cpp
@@ -0,0 +1,30 @@
+//
+// Created by Krad on 2021/12/8.
+//
+
+#include <QtWidgets/QVBoxLayout>
+#include <QtWidgets/QLabel>
+#include "AlertDialog.h"
+
+AlertDialog::AlertDialog(QWidget *parent, Qt::WindowFlags f) : GUIFormBaseDialog(parent, f) {
+    this->setFixedHeight(180);
+    this->setFixedWidth(400);
+    QVBoxLayout* layout = new QVBoxLayout(formWidget);
+    layout->setSpacing(10);
+    // add title
+    QLabel* lbl_title = new QLabel(this);
+    lbl_title->setAlignment(Qt::AlignCenter);
+    lbl_title->setText(tr("Warning"));
+    lbl_title->setObjectName("title");
+    layout->addWidget(lbl_title);
+    lbl_msg = new QLabel(this);
+    layout->addWidget(lbl_msg);
+}
+
+AlertDialog::~AlertDialog() {
+
+}
+
+void AlertDialog::setAlertMessage(const QString &msg) {
+    this->lbl_msg->setText(msg);
+}
diff --git a/src/AlertDialog.h b/src/AlertDialog.h
new file mode 100644
index 0000000..2cb2574
--- /dev/null
+++ b/src/AlertDialog.h
@@ -0,0 +1,23 @@
+//
+// Created by Krad on 2021/12/8.
+//
+
+#ifndef GUI_ALERTDIALOG_H
+#define GUI_ALERTDIALOG_H
+class QLabel;
+#include "GUIFormBaseDialog.h"
+class AlertDialog :public GUIFormBaseDialog{
+    Q_OBJECT
+public:
+    explicit AlertDialog(QWidget *parent = nullptr, Qt::WindowFlags f = Qt::WindowFlags());
+    ~AlertDialog();
+    void setAlertMessage(const QString& msg);
+protected:
+    bool updateReferenceData() override{return true;}
+
+private:
+    QLabel* lbl_msg;
+};
+
+
+#endif //GUI_ALERTDIALOG_H
diff --git a/src/GUIFormBaseDialog.cpp b/src/GUIFormBaseDialog.cpp
index dedbafa..f0a173e 100644
--- a/src/GUIFormBaseDialog.cpp
+++ b/src/GUIFormBaseDialog.cpp
@@ -20,9 +20,9 @@ GUIFormBaseDialog::GUIFormBaseDialog(QWidget *parent, Qt::WindowFlags f) : QDial
     QWidget* btnWidget= new QWidget(this);
     vLayout->addWidget(btnWidget);
     QHBoxLayout* hLayout = new QHBoxLayout(btnWidget);
-    QPushButton* btnOk= new QPushButton(btnWidget);
+    btnOk= new QPushButton(btnWidget);
     btnOk->setText("OK");
-    QPushButton* btnCancel = new QPushButton(btnWidget);
+    btnCancel = new QPushButton(btnWidget);
     btnCancel->setText("Cancel");
     hLayout->addWidget(btnOk);
     hLayout->addWidget(btnCancel);
@@ -39,3 +39,26 @@ GUIFormBaseDialog::GUIFormBaseDialog(QWidget *parent, Qt::WindowFlags f) : QDial
 GUIFormBaseDialog::~GUIFormBaseDialog() {
 
 }
+
+void GUIFormBaseDialog::setButtonMode(DialogButtonMode mode) {
+    switch (mode) {
+        case OkOnly:
+        {
+            btnOk->setVisible(true);
+            btnCancel->setVisible(false);
+            return;
+        }
+        case OkAndCancel:
+        {
+            btnOk->setVisible(true);
+            btnCancel->setVisible(true);
+            return;
+        }
+        case None:
+        default:
+            {
+            btnOk->setVisible(false);
+            btnCancel->setVisible(false);
+        }
+    }
+}
diff --git a/src/GUIFormBaseDialog.h b/src/GUIFormBaseDialog.h
index 67dbab0..a57a7f2 100644
--- a/src/GUIFormBaseDialog.h
+++ b/src/GUIFormBaseDialog.h
@@ -4,19 +4,24 @@
 
 #ifndef GUI_GUIFORMBASEDIALOG_H
 #define GUI_GUIFORMBASEDIALOG_H
-
+enum DialogButtonMode
+{
+    None,OkOnly,OkAndCancel
+};
 #include <QDialog>
 class GUIFormBaseDialog: public QDialog {
 Q_OBJECT
 public:
     explicit GUIFormBaseDialog(QWidget *parent = nullptr, Qt::WindowFlags f = Qt::WindowFlags());
     ~GUIFormBaseDialog();
-
+    void setButtonMode(DialogButtonMode mode);
 protected:
     virtual bool updateReferenceData(){
         return false;
     };
     QWidget* formWidget = nullptr;
+    QPushButton* btnCancel = nullptr;
+    QPushButton* btnOk = nullptr;
 };