diff --git a/src/vulkanwidget.cpp b/src/vulkanwidget.cpp
index 85383f6..cab5a73 100644
--- a/src/vulkanwidget.cpp
+++ b/src/vulkanwidget.cpp
@@ -5,6 +5,7 @@
 #include <QHideEvent>
 #include <QResizeEvent>
 #include <QPaintEvent>
+#include <QCloseEvent>
 #include <QWindow>
 #include <QApplication>
 #include <algorithm>
@@ -52,6 +53,7 @@ VulkanWidget::VulkanWidget(QWidget *parent)
     , m_lastLockFrameCount(0)
     , m_lockPaintFrameCount(0)
     , m_lockCount(0)
+    , m_isClosing(false)
 {
     // Set widget attributes for native window
     setAttribute(Qt::WA_NativeWindow);
@@ -483,9 +485,20 @@ bool VulkanWidget::createSwapchain()
     qDebug() << "Widget size:" << width() << "x" << height();
     qDebug() << "Device pixel ratio:" << devicePixelRatioF();
 
+    // Don't create swapchain if closing
+    if (m_isClosing) {
+        qDebug() << "Aborting swapchain creation - widget is closing";
+        return false;
+    }
+
     // Query surface capabilities
     VkSurfaceCapabilitiesKHR capabilities;
-    vkGetPhysicalDeviceSurfaceCapabilitiesKHR(m_physicalDevice, m_surface, &capabilities);
+    VkResult result = vkGetPhysicalDeviceSurfaceCapabilitiesKHR(m_physicalDevice, m_surface, &capabilities);
+    
+    if (result != VK_SUCCESS) {
+        qDebug() << "Failed to get surface capabilities, error code:" << result;
+        return false;
+    }
 
     qDebug() << "Surface capabilities - current extent:"
              << capabilities.currentExtent.width << "x" << capabilities.currentExtent.height;
@@ -493,6 +506,16 @@ bool VulkanWidget::createSwapchain()
              << capabilities.minImageExtent.width << "x" << capabilities.minImageExtent.height;
     qDebug() << "Surface capabilities - max extent:"
              << capabilities.maxImageExtent.width << "x" << capabilities.maxImageExtent.height;
+    
+    // Validate surface capabilities - detect invalid/corrupted values
+    // This can happen when the window is being destroyed
+    if (capabilities.currentExtent.width > 16384 || capabilities.currentExtent.height > 16384 ||
+        capabilities.minImageExtent.width > 16384 || capabilities.minImageExtent.height > 16384 ||
+        capabilities.maxImageExtent.width > 1000000 || capabilities.maxImageExtent.height > 1000000) {
+        qDebug() << "ERROR: Invalid surface capabilities detected - surface may be destroyed";
+        qDebug() << "This usually happens when the window is being closed";
+        return false;
+    }
 
     // Query surface formats
     uint32_t formatCount;
@@ -576,9 +599,9 @@ bool VulkanWidget::createSwapchain()
     createInfo.clipped = VK_TRUE;
     createInfo.oldSwapchain = VK_NULL_HANDLE;
 
-    VkResult result = vkCreateSwapchainKHR(m_device, &createInfo, nullptr, &m_swapchain);
-    if (result != VK_SUCCESS) {
-        qDebug() << "Failed to create swapchain, error code:" << result;
+    VkResult swapchainResult = vkCreateSwapchainKHR(m_device, &createInfo, nullptr, &m_swapchain);
+    if (swapchainResult != VK_SUCCESS) {
+        qDebug() << "Failed to create swapchain, error code:" << swapchainResult;
         return false;
     }
 
@@ -607,9 +630,9 @@ bool VulkanWidget::createSwapchain()
         viewInfo.subresourceRange.layerCount = 1;
 
         VkImageView imageView;
-        result = vkCreateImageView(m_device, &viewInfo, nullptr, &imageView);
-        if (result != VK_SUCCESS) {
-            qDebug() << "Failed to create image view" << i << ", error code:" << result;
+        VkResult viewResult = vkCreateImageView(m_device, &viewInfo, nullptr, &imageView);
+        if (viewResult != VK_SUCCESS) {
+            qDebug() << "Failed to create image view" << i << ", error code:" << viewResult;
             return false;
         }
         m_swapchainImageViews[i] = reinterpret_cast<void*>(imageView);
@@ -685,6 +708,12 @@ bool VulkanWidget::createSyncObjects()
 bool VulkanWidget::recreateSwapchain()
 {
     qDebug() << "Recreating swapchain...";
+    
+    // Don't recreate if closing
+    if (m_isClosing) {
+        qDebug() << "Aborting swapchain recreation - widget is closing";
+        return false;
+    }
 
     // Wait for device to be idle
     vkDeviceWaitIdle(m_device);
@@ -710,7 +739,8 @@ bool VulkanWidget::recreateSwapchain()
 
 void VulkanWidget::renderFrame()
 {
-    if (!m_initialized) {
+    // Don't render if closing or not initialized
+    if (!m_initialized || m_isClosing) {
         return;
     }
 
@@ -993,6 +1023,29 @@ void VulkanWidget::hideEvent(QHideEvent *event)
     setRenderingEnabled(false);
 }
 
+void VulkanWidget::closeEvent(QCloseEvent *event)
+{
+    qDebug() << "VulkanWidget closeEvent - stopping rendering and cleaning up";
+    
+    // Set closing flag to prevent any further rendering attempts
+    m_isClosing = true;
+    
+    // Stop the render timer immediately
+    if (m_renderTimer) {
+        m_renderTimer->stop();
+        qDebug() << "Render timer stopped on close";
+    }
+    
+    // Wait for device to be idle before accepting close event
+    if (m_device != VK_NULL_HANDLE) {
+        vkDeviceWaitIdle(m_device);
+        qDebug() << "Vulkan device idle on close";
+    }
+    
+    // Accept the close event
+    QWidget::closeEvent(event);
+}
+
 void VulkanWidget::resizeEvent(QResizeEvent *event)
 {
     QWidget::resizeEvent(event);
diff --git a/src/vulkanwidget.h b/src/vulkanwidget.h
index 16ee5d5..540a4a2 100644
--- a/src/vulkanwidget.h
+++ b/src/vulkanwidget.h
@@ -62,6 +62,11 @@ protected:
      */
     void hideEvent(QHideEvent *event) override;
 
+    /**
+     * @brief Qt事件：窗口关闭时
+     */
+    void closeEvent(QCloseEvent *event) override;
+
     /**
      * @brief Qt事件：组件大小改变时
      */
@@ -208,6 +213,7 @@ private:
     bool m_renderingEnabled;
     bool m_needsResize;
     bool m_needsLockedFrameUpdate; // 是否需要渲染锁屏帧（锁屏时只渲染一帧）
+    bool m_isClosing; // 标记窗口正在关闭，防止在销毁过程中继续渲染
     int m_frameCount;
     uint32_t m_queueFamilyIndex;
     uint32_t m_currentFrame;