diff --git a/src/main_window.cpp b/src/main_window.cpp
index 776c9ff1..4cf51667 100755
--- a/src/main_window.cpp
+++ b/src/main_window.cpp
@@ -342,10 +342,7 @@ void MainWindow::initTreelandtAttributes() //initTreelandtAttributes
     installEventFilter(this);
     createWinId();
 
-    //构建截屏工具栏和相关组件
-    m_toolBar =new ToolBar(this);
-    m_toolBar->move(100,128);
-    m_toolBar->show();
+    // Treeland 截图工具栏在 sourceReady(captureRegionChanged) 后由 updateCaptureRegion 创建
 
     m_sideBar = new SideBar(this);
     m_sideBar->initSideBar(this);
@@ -367,8 +364,6 @@ void MainWindow::initTreelandtAttributes() //initTreelandtAttributes
         }
         m_zoomIndicator->hideMagnifier();
     }
-    // 设置窗口大小和位置
-    connect(m_toolBar, &ToolBar::currentFunctionToMain, this, &MainWindow::changeFunctionButton);
     m_backgroundRect = rootWindowRect;
     m_backgroundRect = QRect(m_backgroundRect.topLeft() / m_pixelRatio, m_backgroundRect.size());
     move(m_backgroundRect.topLeft() * m_pixelRatio);
@@ -915,9 +910,11 @@ void MainWindow::checkIsLockScreen()
     qCInfo(dsrApp) << "Current Screen is LockScreen?" << isLockScreen;
     if (isLockScreen) {
         pinScreenshotsLockScreen(isLockScreen);
-        m_toolBar->setScrollShotDisabled(true);
-        m_toolBar->setOcrScreenshotsEnable(false);
-        m_toolBar->setButEnableOnLockScreen(false);
+        if (m_toolBar) {
+            m_toolBar->setScrollShotDisabled(true);
+            m_toolBar->setOcrScreenshotsEnable(false);
+            m_toolBar->setButEnableOnLockScreen(false);
+        }
     }
     // 电源界面判断接口
     QDBusInterface ddeLockFront(
@@ -935,9 +932,11 @@ void MainWindow::checkIsLockScreen()
     qCInfo(dsrApp) << "Current Screen is Powersource UI?" << isLockFront;
     if (isLockFront) {
         pinScreenshotsLockScreen(isLockScreen);
-        m_toolBar->setScrollShotDisabled(true);
-        m_toolBar->setOcrScreenshotsEnable(false);
-        m_toolBar->setButEnableOnLockScreen(false);
+        if (m_toolBar) {
+            m_toolBar->setScrollShotDisabled(true);
+            m_toolBar->setOcrScreenshotsEnable(false);
+            m_toolBar->setButEnableOnLockScreen(false);
+        }
     }
 }
 void MainWindow::initDynamicLibPath()
@@ -1407,30 +1406,36 @@ void MainWindow::initScreenShot()
     // 构建截屏工具栏按钮 by zyg
     if (m_firstShot == 0) {
         qCDebug(dsrApp) << "initScreenShot m_firstShot == 0";
-        m_toolBar->hide();
+        if (m_toolBar) {
+            m_toolBar->hide();
+        }
         m_sideBar->hide();
 
         // m_recordButton->hide();
         // m_shotButton->hide();
         m_sizeTips->hide();
-    }
-
-    else {
+    } else {
         qCDebug(dsrApp) << "initScreenShot m_firstShot != 0";
-        m_toolBar->show();
+        if (m_toolBar) {
+            m_toolBar->show();
+        }
         m_sideBar->hide();
 
         // m_recordButton->hide();
         // m_shotButton->show();
         m_sizeTips->show();
 
-        updateToolBarPos();
+        if (m_toolBar) {
+            updateToolBarPos();
+        }
         // updateShotButtonPos();
         m_sizeTips->setRecorderTipsInfo(false);
         m_sizeTips->updateTips(QPoint(recordX, recordY), QSize(recordWidth, recordHeight));
     }
 
-    m_toolBar->setFocus();
+    if (m_toolBar) {
+        m_toolBar->setFocus();
+    }
     qCDebug(dsrApp) << "initScreenShot end";
 }
 
@@ -1496,24 +1501,28 @@ void MainWindow::initScreenRecorder()
     // 构建截屏工具栏按钮 by zyg
     if (m_firstShot == 0) {
         qCDebug(dsrApp) << "initScreenRecorder m_firstShot == 0";
-        m_toolBar->hide();
+        if (m_toolBar) {
+            m_toolBar->hide();
+        }
         m_sideBar->hide();
 
         // m_recordButton->hide();
         // m_shotButton->hide();
         m_sizeTips->hide();
-    }
-
-    else {
+    } else {
         qCDebug(dsrApp) << "initScreenRecorder m_firstShot != 0";
-        m_toolBar->show();
+        if (m_toolBar) {
+            m_toolBar->show();
+        }
         m_sideBar->hide();
 
         // m_recordButton->show();
         // m_shotButton->hide();
         m_sizeTips->show();
 
-        updateToolBarPos();
+        if (m_toolBar) {
+            updateToolBarPos();
+        }
         // updateRecordButtonPos();
         m_sizeTips->setRecorderTipsInfo(true);
         m_sizeTips->updateTips(QPoint(recordX, recordY), QSize(recordWidth, recordHeight));
@@ -1533,7 +1542,9 @@ void MainWindow::initScreenRecorder()
         }
     }
 
-    m_toolBar->setFocus();
+    if (m_toolBar) {
+        m_toolBar->setFocus();
+    }
     qCDebug(dsrApp) << "initScreenRecorder end";
 }
 
@@ -2819,7 +2830,7 @@ void MainWindow::wheelEvent(QWheelEvent *event)
 
 void MainWindow::pinScreenshotsLockScreen(bool isLocked)
 {
-    if (m_toolBarInit) {
+    if (m_toolBar) {
         m_toolBar->setPinScreenshotsEnable(!isLocked);
     }
 }
@@ -2915,7 +2926,10 @@ void MainWindow::compositeChanged()
 {
     // 滚动截图过程中动态切换为2D模式，直接结束
     if (m_functionType == status::shot) {
-        m_toolBar->setScrollShotDisabled(!m_wmHelper->hasBlurWindow());
+        // Treeland：工具栏在 sourceReady 后才创建，Wayland 初始化可能先触发 hasBlurWindowChanged
+        if (m_toolBar) {
+            m_toolBar->setScrollShotDisabled(!m_wmHelper->hasBlurWindow());
+        }
         return;
     }
     if (!m_wmHelper->hasBlurWindow() && m_functionType == status::scrollshot) {
@@ -2952,7 +2966,7 @@ void MainWindow::compositeChanged()
 
 void MainWindow::updateToolBarPos()
 {
-    if (m_shotflag == 1) {
+    if (m_shotflag == 1 || !m_toolBar) {
         return;
     }
     m_isToolBarInside = false;
@@ -5243,16 +5257,18 @@ int MainWindow::mouseMoveEF(QMouseEvent *mouseEvent, bool &needRepaint)
     m_currentCursor = mouseEvent->pos();
     // 没打开截图的编辑模式
     if (!m_isShapesWidgetExist) {
-        if (m_toolBar->isVisible()) {
+        if (m_toolBar && m_toolBar->isVisible()) {
             updateToolBarPos();
-            m_zoomIndicator->hideMagnifier();
+            if (m_zoomIndicator) {
+                m_zoomIndicator->hideMagnifier();
+            }
         }
 
         if (!isFirstMove) {
             isFirstMove = true;
         } else {
             if (status::shot == m_functionType) {
-                if (!m_toolBar->isVisible() && !isFirstReleaseButton) {
+                if (m_toolBar && !m_toolBar->isVisible() && !isFirstReleaseButton) {
                     // QPoint curPos = this->cursor().pos(); 采用全局坐标，替换局部坐标
                     // mouseEvent->globalPos()此接口获取的光标坐标是已经缩放后的坐标，需还原
                     QPoint curPos = this->cursor().pos();  // 采用全局坐标，替换局部坐标
@@ -7748,7 +7764,7 @@ void MainWindow::initializeCapture()
         );
 
     connect(manager->context(), &TreelandCaptureContext::captureRegionChanged,
-            this, &MainWindow::updateCaptureRegion);
+            this, &MainWindow::updateCaptureRegion, Qt::UniqueConnection);
 
     connect(manager, &TreelandCaptureManager::finishSelect,
             this, &MainWindow::handleCaptureFinish);
@@ -7854,32 +7870,68 @@ void MainWindow::onFinishClicked()
     TreelandCaptureManager::instance()->finishSelect();
 }
 
+void MainWindow::destroyTreelandToolBar()
+{
+    if (!m_toolBar) {
+        return;
+    }
+
+    ToolBar *toolBar = m_toolBar;
+    m_toolBar = nullptr;
+    m_toolBarInit = false;
+
+    if (toolBar->windowHandle()) {
+        toolBar->windowHandle()->setParent(nullptr);
+    }
+    toolBar->blockSignals(true);
+    disconnect(toolBar, nullptr, nullptr, nullptr);
+    disconnect(nullptr, nullptr, toolBar, nullptr);
+    toolBar->hide();
+    delete toolBar;
+    // 选项菜单里的边框子菜单由 ImageBorderHelper 缓存，需清理悬空指针
+    ImageBorderHelper::instance()->pruneBorderMenus();
+}
+
 void MainWindow::updateCaptureRegion()
 {
     auto context = TreelandCaptureManager::instance()->context();
-    if (!context) return;
-    QRect region = context->captureRegion().toRect();
+    if (!context) {
+        return;
+    }
+
+    const QRect region = context->captureRegion().toRect();
+    // 无效选区：只销毁旧工具栏，等下一次 sourceReady 再创建
+    if (region.width() <= 0 || region.height() <= 0) {
+        destroyTreelandToolBar();
+        return;
+    }
+
+    // 每次重新选区：先析构上一块工具栏（含 Wayland subsurface），再按新选区 new
+    destroyTreelandToolBar();
 
     m_toolBar = new ToolBar(this);
+    connect(m_toolBar, &ToolBar::currentFunctionToMain, this, &MainWindow::changeFunctionButton);
     m_toolBar->initToolBar(this, isHideToolBar);
+    m_toolBar->setRecordLaunchMode(m_functionType);
+    m_toolBarInit = true;
 
     m_toolBar->setAttribute(Qt::WA_TranslucentBackground);
     m_toolBar->setWindowFlags(Qt::FramelessWindowHint | Qt::Tool | Qt::WindowStaysOnTopHint);
 
+    recordX = region.x();
+    recordY = region.y();
+    recordWidth = region.width();
+    recordHeight = region.height();
+
     m_toolBar->showWidget();
-    QPoint pos(region.x(), qMin(region.bottom(), height() - 2 * m_toolBar->height()));
+    const QPoint pos(region.x(), qMin(region.bottom(), height() - 2 * m_toolBar->height()));
     m_toolBar->showAt(pos);
-    m_toolBar->showWidget();
 
-
-    if(windowHandle()&&m_toolBar->windowHandle())
-    {
-        if(m_toolBar->windowHandle()->parent() != windowHandle())
-        {
-            m_toolBar->windowHandle()->setParent(windowHandle());
-            m_toolBar->hide();
-            m_toolBar->show();
-        }
+    if (windowHandle() && m_toolBar->windowHandle()
+        && m_toolBar->windowHandle()->parent() != windowHandle()) {
+        m_toolBar->windowHandle()->setParent(windowHandle());
+        m_toolBar->hide();
+        m_toolBar->show();
     }
 }
 
diff --git a/src/main_window.h b/src/main_window.h
index 98d8a06c..3c439124 100755
--- a/src/main_window.h
+++ b/src/main_window.h
@@ -470,6 +470,9 @@ public slots:
      */
     void updateCaptureRegion();
 
+    /** Treeland：销毁当前工具栏（含 subsurface 解绑），便于重选区后重建 */
+    void destroyTreelandToolBar();
+
     Q_SCRIPTABLE void stopRecord();
     Q_SCRIPTABLE void stopApp();
     
diff --git a/src/widgets/imagemenu.cpp b/src/widgets/imagemenu.cpp
index 30c328bd..08d5423d 100755
--- a/src/widgets/imagemenu.cpp
+++ b/src/widgets/imagemenu.cpp
@@ -254,15 +254,34 @@ ImageBorderHelper *ImageBorderHelper::instance()
     return m_imageBorderHelper;
 }
 
+void ImageBorderHelper::pruneBorderMenus()
+{
+    for (auto it = m_allBorderMenu.begin(); it != m_allBorderMenu.end();) {
+        if (it.value().isNull()) {
+            it = m_allBorderMenu.erase(it);
+        } else {
+            ++it;
+        }
+    }
+}
+
 ImageMenu *ImageBorderHelper::getBorderMenu(const BorderType type, const QString title, QWidget *parent)
 {
     qCDebug(dsrApp) << "ImageBorderHelper::getBorderMenu called for type:" << type << ", title:" << title;
-    if (!m_allBorderMenu.contains(type)) {
-        qCDebug(dsrApp) << "Menu for type" << type << "not found, creating new one";
-        m_allBorderMenu.insert(type, new ImageMenu(type, title, parent));
+    pruneBorderMenus();
+
+    if (ImageMenu *cached = m_allBorderMenu.value(type)) {
+        if (cached->parent() == parent) {
+            return cached;
+        }
+        m_allBorderMenu.remove(type);
+        delete cached;
     }
-    qCDebug(dsrApp) << "Returning menu for type:" << type;
-    return m_allBorderMenu[type];
+
+    ImageMenu *menu = new ImageMenu(type, title, parent);
+    m_allBorderMenu.insert(type, menu);
+    qCDebug(dsrApp) << "Created border menu for type:" << type;
+    return menu;
 }
 
 void ImageBorderHelper::setActionState(const BorderType type, const bool isChecked)
@@ -270,10 +289,14 @@ void ImageBorderHelper::setActionState(const BorderType type, const bool isCheck
     qCDebug(dsrApp) << "ImageBorderHelper::setActionState called for type:" << type << ", isChecked:" << isChecked;
     // 选中某边框，后清空其他类型的所有边框
     for (auto itr = m_allBorderMenu.begin(); itr != m_allBorderMenu.end(); ++itr) {
-        qCDebug(dsrApp) << "Processing menu for border type:" << itr.value()->borderType();
-        if (itr.value()->borderType() != type) {
-            qCDebug(dsrApp) << "Clearing action state for other border type:" << itr.value()->borderType();
-            itr.value()->ActionChecked(nullptr);
+        ImageMenu *menu = itr.value();
+        if (!menu) {
+            continue;
+        }
+        qCDebug(dsrApp) << "Processing menu for border type:" << menu->borderType();
+        if (menu->borderType() != type) {
+            qCDebug(dsrApp) << "Clearing action state for other border type:" << menu->borderType();
+            menu->ActionChecked(nullptr);
         }
     }
 
@@ -287,6 +310,9 @@ int ImageBorderHelper::getBorderTypeDetail()
     int typeDetail = 0;
     for (auto itr = m_allBorderMenu.begin(); itr != m_allBorderMenu.end(); ++itr) {
         ImageMenu *menu = itr.value();
+        if (!menu) {
+            continue;
+        }
         qCDebug(dsrApp) << "Getting border type detail for menu of type:" << menu->borderType();
         typeDetail = menu->getBorderTypeDetail();
         if (typeDetail != 0) {
@@ -306,9 +332,9 @@ void ImageBorderHelper::setBorderTypeDetail(const int typeDetail)
     int id = typeDetail & 0xFF;
     qCDebug(dsrApp) << "Parsed type:" << type << ", ID:" << id;
 
-    if (m_allBorderMenu.contains(type)) {
+    if (ImageMenu *menu = m_allBorderMenu.value(type)) {
         qCDebug(dsrApp) << "Menu for type" << type << "found, setting border type detail";
-        m_allBorderMenu[type]->setBorderTypeDetail(id);
+        menu->setBorderTypeDetail(id);
     }
 }
 
@@ -387,9 +413,12 @@ ImageBorderHelper::~ImageBorderHelper()
 {
     qCDebug(dsrApp) << "ImageBorderHelper destructor entered";
     for (auto itr = m_allBorderMenu.begin(); itr != m_allBorderMenu.end(); ++itr) {
-        qCDebug(dsrApp) << "Deleting border menu for type:" << itr.value()->borderType();
-        delete *itr;
+        if (ImageMenu *menu = itr.value()) {
+            qCDebug(dsrApp) << "Deleting border menu for type:" << menu->borderType();
+            delete menu;
+        }
     }
+    m_allBorderMenu.clear();
     if (m_borderhandle != nullptr) {
         qCDebug(dsrApp) << "Deleting border handler";
         delete m_borderhandle;
diff --git a/src/widgets/imagemenu.h b/src/widgets/imagemenu.h
index 0299fb4c..23530ad4 100644
--- a/src/widgets/imagemenu.h
+++ b/src/widgets/imagemenu.h
@@ -9,6 +9,7 @@
 #include <DMenu>
 #include <DIconButton>
 #include <QButtonGroup>
+#include <QPointer>
 
 DWIDGET_USE_NAMESPACE
 class BorderProcessInterface;
@@ -26,6 +27,8 @@ class ImageBorderHelper : public QObject
 
     static ImageBorderHelper *instance();
     ImageMenu* getBorderMenu(const BorderType type, const QString title, QWidget *parent = nullptr);
+    /** 工具栏/选项菜单销毁后清理悬空缓存（如 Treeland 重选区重建工具栏） */
+    void pruneBorderMenus();
     void setActionState(const BorderType type, const bool isChecked);
     int getBorderTypeDetail();
     void setBorderTypeDetail(const int typeDetail);
@@ -41,7 +44,7 @@ class ImageBorderHelper : public QObject
     ~ImageBorderHelper();
 private:
     static ImageBorderHelper *m_imageBorderHelper;
-    QMap<BorderType, ImageMenu*> m_allBorderMenu;
+    QMap<BorderType, QPointer<ImageMenu>> m_allBorderMenu;
     BorderProcessInterface *m_borderhandle;
 };
 
diff --git a/src/widgets/toolbar.cpp b/src/widgets/toolbar.cpp
index f29ce0e1..f01087ea 100755
--- a/src/widgets/toolbar.cpp
+++ b/src/widgets/toolbar.cpp
@@ -323,38 +323,44 @@ void ToolBar::mouseReleaseEvent(QMouseEvent *event)
 
 void ToolBar::setScrollShotDisabled(const bool state)
 {
+    if (!m_toolbarWidget) {
+        return;
+    }
     m_toolbarWidget->setScrollShotDisabled(state);
 }
 
 void ToolBar::setPinScreenshotsEnable(const bool &state)
 {
-    m_toolbarWidget->setPinScreenshotsEnable(state);
+    if (m_toolbarWidget)
+        m_toolbarWidget->setPinScreenshotsEnable(state);
 }
 
 void ToolBar::setOcrScreenshotsEnable(const bool &state)
 {
-    m_toolbarWidget->setOcrScreenshotsEnable(state);
+    if (m_toolbarWidget)
+        m_toolbarWidget->setOcrScreenshotsEnable(state);
 }
 
 void ToolBar::setButEnableOnLockScreen(const bool &state)
 {
-    m_toolbarWidget->setButEnableOnLockScreen(state);
+    if (m_toolbarWidget)
+        m_toolbarWidget->setButEnableOnLockScreen(state);
 }
 
 int ToolBar::getFuncSubToolX(QString &func)
 {
-    return m_toolbarWidget->getFuncSubToolX(func);
+    return m_toolbarWidget ? m_toolbarWidget->getFuncSubToolX(func) : 0;
 }
 
 
 QRect ToolBar::getAiButtonGlobalRect() const
 {
-    return m_toolbarWidget->getAiButtonGlobalRect();
+    return m_toolbarWidget ? m_toolbarWidget->getAiButtonGlobalRect() : QRect();
 }
 
 QPoint ToolBar::getAiButtonGlobalCenter() const
 {
-    return m_toolbarWidget->getAiButtonGlobalCenter();
+    return m_toolbarWidget ? m_toolbarWidget->getAiButtonGlobalCenter() : QPoint();
 }
 
 bool ToolBar::isDraged()
@@ -414,18 +420,21 @@ void ToolBar::hideWidget(){
 
 void ToolBar::setRecordButtonDisable()
 {
-    m_toolbarWidget->setRecordButtonDisable();
+    if (m_toolbarWidget)
+        m_toolbarWidget->setRecordButtonDisable();
 }
 
 void ToolBar::setRecordLaunchMode(const unsigned int funType)
 {
     qCDebug(dsrApp) << "Setting record launch mode:" << funType;
-    m_toolbarWidget->setRecordLaunchFromMain(funType);
+    if (m_toolbarWidget)
+        m_toolbarWidget->setRecordLaunchFromMain(funType);
 }
 
 void ToolBar::setVideoButtonInit()
 {
-    m_toolbarWidget->setVideoInitFromMain();
+    if (m_toolbarWidget)
+        m_toolbarWidget->setVideoInitFromMain();
 }
 
 void ToolBar::shapeClickedFromMain(QString shape)
@@ -442,11 +451,12 @@ void ToolBar::shapeClickedFromMain(QString shape)
 void ToolBar::setCameraDeviceEnable(bool status)
 {
     qCDebug(dsrApp) << "Setting camera device enable:" << status;
-    m_toolbarWidget->setCameraDeviceEnable(status);
+    if (m_toolbarWidget)
+        m_toolbarWidget->setCameraDeviceEnable(status);
 }
 
 QRect ToolBar::getShotOptionRect(){
-   return m_toolbarWidget->getShotOptionRect();
+   return m_toolbarWidget ? m_toolbarWidget->getShotOptionRect() : QRect();
 }
 ToolBar::~ToolBar()
 {