diff --git a/src/hooks/useGlobalHotkey.ts b/src/hooks/useGlobalHotkey.ts
index d667fb6b..63d6c31b 100644
--- a/src/hooks/useGlobalHotkey.ts
+++ b/src/hooks/useGlobalHotkey.ts
@@ -35,6 +35,7 @@ export default () => {
     deleteSlide,
     cutSlide,
     copyAndPasteSlide,
+    selectAllSlide,
   } = useSlideHandler()
 
   const { combineElements, uncombineElements } = useCombineElement()
@@ -64,8 +65,8 @@ export default () => {
   }
 
   const selectAll = () => {
-    if (!editorAreaFocus.value) return
-    selectAllElement()
+    if (editorAreaFocus.value) selectAllElement()
+    if (thumbnailsFocus.value) selectAllSlide()
   }
 
   const lock = () => {
diff --git a/src/hooks/useSlideHandler.ts b/src/hooks/useSlideHandler.ts
index b95c06c0..7c8e6421 100644
--- a/src/hooks/useSlideHandler.ts
+++ b/src/hooks/useSlideHandler.ts
@@ -108,6 +108,13 @@ export default () => {
     deleteSlide(targetSlidesId)
   }
 
+  // 选中全部幻灯片
+  const selectAllSlide = () => {
+    const newSelectedSlidesIndex = Array.from(Array(slides.value.length), (item, index) => index)
+    store.commit(MutationTypes.SET_ACTIVE_ELEMENT_ID_LIST, [])
+    store.commit(MutationTypes.UPDATE_SELECTED_SLIDES_INDEX, newSelectedSlidesIndex)
+  }
+
   return {
     resetSlides,
     updateSlideIndex,
@@ -117,5 +124,6 @@ export default () => {
     copyAndPasteSlide,
     deleteSlide,
     cutSlide,
+    selectAllSlide,
   }
 }
\ No newline at end of file
diff --git a/src/views/Editor/Thumbnails/index.vue b/src/views/Editor/Thumbnails/index.vue
index ae4c2722..16a87337 100644
--- a/src/views/Editor/Thumbnails/index.vue
+++ b/src/views/Editor/Thumbnails/index.vue
@@ -65,6 +65,7 @@ export default defineComponent({
       copyAndPasteSlide,
       deleteSlide,
       cutSlide,
+      selectAllSlide,
     } = useSlideHandler()
 
     // 切换页面
@@ -156,6 +157,11 @@ export default defineComponent({
           subText: 'Ctrl + V',
           handler: pasteSlide,
         },
+        {
+          text: '全选',
+          subText: 'Ctrl + A',
+          handler: selectAllSlide,
+        },
         {
           text: '新建页面',
           subText: 'Enter',
@@ -186,6 +192,11 @@ export default defineComponent({
           subText: 'Ctrl + V',
           handler: pasteSlide,
         },
+        {
+          text: '全选',
+          subText: 'Ctrl + A',
+          handler: selectAllSlide,
+        },
         { divider: true },
         {
           text: '新建页面',