diff --git a/frame/item/components/appdragwidget.cpp b/frame/item/components/appdragwidget.cpp
index 370dbe114..46b979f62 100644
--- a/frame/item/components/appdragwidget.cpp
+++ b/frame/item/components/appdragwidget.cpp
@@ -35,7 +35,7 @@ AppDragWidget::AppDragWidget(QWidget *parent)
     , m_goBackAnim(new QPropertyAnimation(this, "pos", this))
     , m_dockPosition(Dock::Position::Bottom)
     , m_removeTips(new TipsWidget(this))
-    , m_popupWindow(new DockPopupWindow(this))
+    , m_popupWindow(new DockPopupWindow(nullptr))
     , m_distanceMultiple(Utils::SettingValue("com.deepin.dde.dock.distancemultiple", "/com/deepin/dde/dock/distancemultiple/", "distance-multiple", 1.5).toDouble())
 {
     m_removeTips->setText(tr("Remove"));
@@ -349,7 +349,7 @@ void AppDragWidget::showRemoveTips()
 {
     Dock::Position pos = Dock::Position::Bottom;
 
-    DockPopupWindow *popup = m_popupWindow;
+    DockPopupWindow *popup = m_popupWindow.data();
     if (isRemoveAble(QCursor::pos())) {
         QWidget *lastContent = popup->getContent();
         if (lastContent)
diff --git a/frame/item/components/appdragwidget.h b/frame/item/components/appdragwidget.h
index c073be536..1a55cf70f 100644
--- a/frame/item/components/appdragwidget.h
+++ b/frame/item/components/appdragwidget.h
@@ -129,7 +129,7 @@ private:
     QPoint m_originPoint;
     QSize m_iconSize;
     Dock::TipsWidget *m_removeTips;
-    QPointer<DockPopupWindow> m_popupWindow;
+    QScopedPointer<DockPopupWindow> m_popupWindow;
     /**
      * @brief m_distanceMultiple: 倍数
      * dock栏上应用区驻留应用被拖拽远离dock的距离除以dock的宽或者高（更小的一个）的比值