diff --git a/deepin-system-monitor-plugin/CMakeLists.txt b/deepin-system-monitor-plugin/CMakeLists.txt
index a77f23ec..89884e36 100644
--- a/deepin-system-monitor-plugin/CMakeLists.txt
+++ b/deepin-system-monitor-plugin/CMakeLists.txt
@@ -30,7 +30,7 @@ pkg_check_modules(QGSettings REQUIRED gsettings-qt)
 pkg_check_modules(DdeDockInterface REQUIRED dde-dock)
 
 if (DdeDockInterface_FOUND)
-    message("dde-dock founded: ${VERSION_MAJOR}")
+    message("dde-dock founded: ${DdeDockInterface_VERSION}")
     string(REGEX MATCH "^[0-9]" VERSION_MAJOR ${DdeDockInterface_VERSION})
     if (VERSION_MAJOR STREQUAL "6" OR VERSION_MAJOR STRGREATER "6")
         add_definitions(-DDDE_DOCK_NEW_VERSION)
diff --git a/deepin-system-monitor-plugin/gui/monitor_plugin.cpp b/deepin-system-monitor-plugin/gui/monitor_plugin.cpp
index c4c57f9c..eb8d4a20 100644
--- a/deepin-system-monitor-plugin/gui/monitor_plugin.cpp
+++ b/deepin-system-monitor-plugin/gui/monitor_plugin.cpp
@@ -68,34 +68,32 @@ void MonitorPlugin::init(PluginProxyInterface *proxyInter)
 
 QWidget *MonitorPlugin::itemWidget(const QString &itemKey)
 {
-    if (!common::systemInfo().isOldVersion()) {
+#ifdef DDE_DOCK_NEW_VERSION
 //    if (itemKey == "system-monitor")
 //        return m_itemWidget;
-    } else {
+#else
         if (itemKey == "system-monitor")
             return m_itemWidget;
-    }
+#endif
     return nullptr;
 }
 
 void MonitorPlugin::pluginStateSwitched()
 {
-    if (common::systemInfo().isOldVersion()) {
-        bool pluginState = !m_proxyInter->getValue(this, constantVal::PLUGIN_STATE_KEY, false).toBool();
-        m_proxyInter->saveValue(this, constantVal::PLUGIN_STATE_KEY, pluginState);
+#ifndef DDE_DOCK_NEW_VERSION
+    bool pluginState = !m_proxyInter->getValue(this, constantVal::PLUGIN_STATE_KEY, false).toBool();
+    m_proxyInter->saveValue(this, constantVal::PLUGIN_STATE_KEY, pluginState);
 
-        refreshPluginItemsVisible();
-    }
+    refreshPluginItemsVisible();
+#endif
 }
 
+#ifndef DDE_DOCK_NEW_VERSION
 bool MonitorPlugin::pluginIsDisable()
 {
-    if (!common::systemInfo().isOldVersion()) {
-        return PluginsItemInterface::pluginIsDisable();
-    } else {
-        return !m_proxyInter->getValue(this, constantVal::PLUGIN_STATE_KEY, false).toBool();
-    }
+    return !m_proxyInter->getValue(this, constantVal::PLUGIN_STATE_KEY, false).toBool();
 }
+#endif
 
 QWidget *MonitorPlugin::itemTipsWidget(const QString &itemKey)
 {
@@ -284,6 +282,7 @@ void MonitorPlugin::loadPlugin()
     displayModeChanged(displayMode());
 }
 
+#ifndef DDE_DOCK_NEW_VERSION
 void MonitorPlugin::refreshPluginItemsVisible()
 {
     if (pluginIsDisable()) {
@@ -296,6 +295,7 @@ void MonitorPlugin::refreshPluginItemsVisible()
         m_proxyInter->itemAdded(this, pluginName());
     }
 }
+#endif
 
 void MonitorPlugin::initPluginState()
 {
diff --git a/deepin-system-monitor-plugin/gui/monitor_plugin.h b/deepin-system-monitor-plugin/gui/monitor_plugin.h
index bf491825..e699d128 100644
--- a/deepin-system-monitor-plugin/gui/monitor_plugin.h
+++ b/deepin-system-monitor-plugin/gui/monitor_plugin.h
@@ -82,6 +82,7 @@ class MonitorPlugin : public QObject, PluginsItemInterface
     //!
     void pluginStateSwitched() Q_DECL_OVERRIDE;
 
+#ifndef DDE_DOCK_NEW_VERSION
     //!
     //! \brief pluginIsAllowDisable 返回插件是否允许被禁用（默认不允许被禁用)
     //! \return
@@ -93,7 +94,7 @@ class MonitorPlugin : public QObject, PluginsItemInterface
     //! \return
     //!
     bool pluginIsDisable() Q_DECL_OVERRIDE;
-
+#endif
     //!
     //! \brief itemTipsWidget 返回鼠标悬浮在插件主控件上时显示的提示框控件
     //! \param itemKey
@@ -164,10 +165,13 @@ private slots:
     //!
     void loadPlugin();
 
+#ifndef DDE_DOCK_NEW_VERSION
     //!
     //! \brief refreshPluginItemsVisible 刷新插件项显示隐藏
     //!
     void refreshPluginItemsVisible();
+#endif
+
     //!
     //! \brief initPluginState 初始化插件状态
     //!