diff --git a/QtScrcpy/dialog.cpp b/QtScrcpy/dialog.cpp
index 2046f38..1607247 100644
--- a/QtScrcpy/dialog.cpp
+++ b/QtScrcpy/dialog.cpp
@@ -34,8 +34,9 @@ Dialog::Dialog(QWidget *parent) :
             QStringList args = m_adb.arguments();
             if (args.contains("devices")) {
                 QStringList devices = m_adb.getDevicesSerialFromStdOut();
-                if (!devices.isEmpty()) {
-                    ui->serialEdt->setText(devices.at(0));
+                ui->serialBox->clear();
+                for (auto& item : devices) {
+                    ui->serialBox->addItem(item);
                 }
             } else if (args.contains("show") && args.contains("wlan0")) {
                 QString ip = m_adb.getDeviceIPFromStdOut();
@@ -69,7 +70,7 @@ void Dialog::on_updateDevice_clicked()
 void Dialog::on_startServerBtn_clicked()
 {
     if (!m_videoForm) {
-        m_videoForm = new VideoForm(ui->serialEdt->text().trimmed());
+        m_videoForm = new VideoForm(ui->serialBox->currentText().trimmed());
     }
     m_videoForm->show();
 }
@@ -108,7 +109,7 @@ void Dialog::on_startAdbdBtn_clicked()
     QStringList adbArgs;
     adbArgs << "tcpip";
     adbArgs << "5555";
-    m_adb.execute(ui->serialEdt->text().trimmed(), adbArgs);
+    m_adb.execute(ui->serialBox->currentText().trimmed(), adbArgs);
 }
 
 void Dialog::outLog(const QString &log, bool newLine)
@@ -145,5 +146,5 @@ void Dialog::on_getIPBtn_clicked()
     adbArgs << "addr";
     adbArgs << "show";
     adbArgs << "wlan0";
-    m_adb.execute(ui->serialEdt->text().trimmed(), adbArgs);
+    m_adb.execute(ui->serialBox->currentText().trimmed(), adbArgs);
 }
diff --git a/QtScrcpy/dialog.ui b/QtScrcpy/dialog.ui
index 0a1a172..f955532 100644
--- a/QtScrcpy/dialog.ui
+++ b/QtScrcpy/dialog.ui
@@ -97,31 +97,14 @@
       <string>USB line</string>
      </property>
      <layout class="QGridLayout" name="gridLayout">
-      <item row="0" column="0">
-       <widget class="QLabel" name="label_2">
+      <item row="4" column="0">
+       <widget class="QPushButton" name="startAdbdBtn">
         <property name="text">
-         <string>device serial:</string>
+         <string>start device adbd</string>
         </property>
        </widget>
       </item>
-      <item row="0" column="1" colspan="2">
-       <widget class="QLineEdit" name="serialEdt"/>
-      </item>
-      <item row="2" column="0">
-       <widget class="QPushButton" name="updateDevice">
-        <property name="text">
-         <string>update device</string>
-        </property>
-       </widget>
-      </item>
-      <item row="2" column="1">
-       <widget class="QPushButton" name="startServerBtn">
-        <property name="text">
-         <string>start server</string>
-        </property>
-       </widget>
-      </item>
-      <item row="2" column="2">
+      <item row="3" column="2">
        <widget class="QPushButton" name="stopServerBtn">
         <property name="text">
          <string>stop server</string>
@@ -129,19 +112,36 @@
        </widget>
       </item>
       <item row="3" column="0">
-       <widget class="QPushButton" name="startAdbdBtn">
+       <widget class="QPushButton" name="updateDevice">
         <property name="text">
-         <string>start device adbd</string>
+         <string>update device</string>
         </property>
        </widget>
       </item>
       <item row="3" column="1">
+       <widget class="QPushButton" name="startServerBtn">
+        <property name="text">
+         <string>start server</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="0">
+       <widget class="QLabel" name="label_2">
+        <property name="text">
+         <string>device serial:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="4" column="1">
        <widget class="QPushButton" name="getIPBtn">
         <property name="text">
          <string>get ip</string>
         </property>
        </widget>
       </item>
+      <item row="0" column="1" colspan="2">
+       <widget class="QComboBox" name="serialBox"/>
+      </item>
      </layout>
     </widget>
    </item>