diff --git a/Modbus/Modbus.vcxproj b/Modbus/Modbus.vcxproj
index 2f67d67..22dd846 100644
--- a/Modbus/Modbus.vcxproj
+++ b/Modbus/Modbus.vcxproj
@@ -100,6 +100,9 @@
     <None Include="resources\Modbus.ico" />
     <ResourceCompile Include="resources\Modbus.rc" />
   </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="x64\Debug\qt\uic\ui_modbus.h" />
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Condition="Exists('$(QtMsBuild)\qt.targets')">
     <Import Project="$(QtMsBuild)\qt.targets" />
diff --git a/Modbus/Modbus.vcxproj.filters b/Modbus/Modbus.vcxproj.filters
index 745d07f..dd1f0cd 100644
--- a/Modbus/Modbus.vcxproj.filters
+++ b/Modbus/Modbus.vcxproj.filters
@@ -47,4 +47,9 @@
       <Filter>Source Files</Filter>
     </ClCompile>
   </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="x64\Debug\qt\uic\ui_modbus.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/Modbus/include/modbus.h b/Modbus/include/modbus.h
index 8569933..6a6e681 100644
--- a/Modbus/include/modbus.h
+++ b/Modbus/include/modbus.h
@@ -19,6 +19,13 @@ public:
     Modbus(QWidget *parent = nullptr);
     ~Modbus();
 
+    QStringList get_avail_serialport();
+
+public slots:
+    // 显示可用串口
+    void init_serialport_client();
+
+
 private:
     Ui::ModbusClass *ui;
 };
diff --git a/Modbus/src/modbus.cpp b/Modbus/src/modbus.cpp
index c5b6dfe..45e92b4 100644
--- a/Modbus/src/modbus.cpp
+++ b/Modbus/src/modbus.cpp
@@ -5,6 +5,7 @@ Modbus::Modbus(QWidget *parent)
     , ui(new Ui::ModbusClass())
 {
     ui->setupUi(this);
+    init_serialport_client();
 }
 
 Modbus::~Modbus()
@@ -12,3 +13,30 @@ Modbus::~Modbus()
     delete ui;
 }
 
+// 实现下拉框显示串口
+void Modbus::init_serialport_client()
+{
+    ui->serialBox->addItems(get_avail_serialport());
+}
+
+// 下拉框获取信息
+QStringList Modbus::get_avail_serialport()
+{
+    // 下拉框串口
+    QStringList list_avail_serialport;
+
+    // 遍历可用串口
+    foreach(const QSerialPortInfo & info, QSerialPortInfo::availablePorts())
+    {
+        // 串口
+        QSerialPort serial;
+        serial.setPort(info);
+        // 显示串口名
+        if (serial.open(QIODevice::ReadWrite))
+        {
+            list_avail_serialport.append(serial.portName());
+            serial.close();
+        }
+    }
+    return list_avail_serialport;
+}