diff --git a/plugins/bluetooth/componments/adapteritem.cpp b/plugins/bluetooth/componments/adapteritem.cpp
index f50682d69..873fcdf6f 100644
--- a/plugins/bluetooth/componments/adapteritem.cpp
+++ b/plugins/bluetooth/componments/adapteritem.cpp
@@ -313,17 +313,27 @@ void AdapterItem::showDevices(bool powered)
     QList<DeviceItem *> deviceItems;
     deviceItems << m_sortConnected << m_sortUnConnect;
 
-    //在蓝牙关闭的时候，会出现不在connected和Unconnect列表中的设备（连接/关闭中的状态），关闭的时候使用总表参数
+    // 在蓝牙关闭的时候，会出现不在connected和Unconnect列表中的设备（连接/关闭中的状态），关闭的时候使用总表参数
     qDebug() << m_sortConnected.size() << m_sortUnConnect.size() << m_deviceItems.size();
     if (powered) {
         for (DeviceItem *deviceItem : deviceItems) {
-            m_deviceLayout->addWidget(deviceItem);
-            deviceItem->setVisible(powered);
+            if (deviceItem) {
+                m_deviceLayout->addWidget(deviceItem);
+                deviceItem->setVisible(powered);
+            }
         }
     } else {
         for (DeviceItem *deviceItem : m_deviceItems) {
-            m_deviceLayout->removeWidget(deviceItem);
-            deviceItem->setVisible(powered);
+            if (deviceItem) {
+                m_deviceLayout->removeWidget(deviceItem);
+                deviceItem->setVisible(powered);
+            }
+        }
+
+        for (DeviceItem *deviceItem : m_sortConnected) {
+            if (deviceItem) {
+                m_adaptersManager->disconnectDevice(deviceItem->device());
+            }
         }
     }
 
diff --git a/plugins/bluetooth/componments/adaptersmanager.cpp b/plugins/bluetooth/componments/adaptersmanager.cpp
index caf47f04e..1f29f9275 100644
--- a/plugins/bluetooth/componments/adaptersmanager.cpp
+++ b/plugins/bluetooth/componments/adaptersmanager.cpp
@@ -295,3 +295,11 @@ void AdaptersManager::adapterRefresh(const Adapter *adapter)
     m_bluetoothInter->SetAdapterDiscoverable(dPath, true);
     m_bluetoothInter->RequestDiscovery(dPath);
 }
+
+void AdaptersManager::disconnectDevice(Device *device)
+{
+    if (device) {
+        QDBusObjectPath path(device->id());
+        m_bluetoothInter->DisconnectDevice(path);
+    }
+}
diff --git a/plugins/bluetooth/componments/adaptersmanager.h b/plugins/bluetooth/componments/adaptersmanager.h
index 0908a5290..a179f39e3 100644
--- a/plugins/bluetooth/componments/adaptersmanager.h
+++ b/plugins/bluetooth/componments/adaptersmanager.h
@@ -43,6 +43,7 @@ public:
     bool defaultAdapterInitPowerState();
     int adaptersCount();
     void adapterRefresh(const Adapter *adapter);
+    void disconnectDevice(Device *device);
 
 signals:
     void adapterIncreased(Adapter *adapter);