diff --git a/src/views/chart/ContentHeader/headerLeftBtn/index.vue b/src/views/chart/ContentHeader/headerLeftBtn/index.vue
index ceb6939a..aace7805 100644
--- a/src/views/chart/ContentHeader/headerLeftBtn/index.vue
+++ b/src/views/chart/ContentHeader/headerLeftBtn/index.vue
@@ -130,7 +130,7 @@ const clickHistoryHandle = (item: ItemType<HistoryStackEnum>) => {
 // 返回首页
 const goHomeHandle = () => {
   goDialog({
-    message: '返回将不会保存任何操作',
+    message: '确定已保存了数据（Ctrl / ⌘ + S），并返回到首页吗？',
     isMaskClosable: true,
     onPositiveCallback: () => {
       goHome()
diff --git a/src/views/chart/hooks/useSync.hook.ts b/src/views/chart/hooks/useSync.hook.ts
index d73ecf9d..6022bf16 100644
--- a/src/views/chart/hooks/useSync.hook.ts
+++ b/src/views/chart/hooks/useSync.hook.ts
@@ -116,8 +116,14 @@ export const useSync = () => {
 
     // 获取缩略图片
     const range = document.querySelector('.go-edit-range') as HTMLElement
+    const ruler = document.getElementById('mb-ruler')
+    // 去除标尺Dom
+    if (ruler) ruler.style.display = 'none'
+    // 生成图片
     const canvasImage: HTMLCanvasElement = await html2canvas(range)
-
+    // 还原标尺
+    if (ruler) ruler.style.display = 'block'
+    
     // 上传预览图
     let uploadParams = new FormData()
     uploadParams.append('object', base64toFile(canvasImage.toDataURL(), `${fetchRouteParamsLocation()}_index_preview.png`))