diff --git a/addon/locale/en-US/addon.ftl b/addon/locale/en-US/addon.ftl
index e82c237..641755f 100644
--- a/addon/locale/en-US/addon.ftl
+++ b/addon/locale/en-US/addon.ftl
@@ -22,6 +22,7 @@ menuAddNote-newMainNote-enterNoteTitle = Enter new note title:
 menuAddNote-newMainNote-openWorkspaceTab = Open note workspace now?
 menuAddNote-newTemplateStandaloneNote = New Standalone Note from Template
 menuAddNote-newTemplateItemNote = New Item Note from Template
+menuAddNote-importMD = Import MarkDown File as Note
 
 menuAddReaderNote-newTemplateNote = New Item Note from Template
 
@@ -122,3 +123,4 @@ templatePicker-itemData-title = Choose Item Template Data Source
 alert-notValidCollectionError = Please select a valid collection.
 alert-notValidParentItemError = No valid parent item.
 alert-notValidWorkspaceNote = Workspace note is not set. Create one?
+alert-syncImportedNotes = Keep imported notes in sync with MarkDown files?
diff --git a/addon/locale/ru-RU/addon.ftl b/addon/locale/ru-RU/addon.ftl
index 7321651..50f366e 100644
--- a/addon/locale/ru-RU/addon.ftl
+++ b/addon/locale/ru-RU/addon.ftl
@@ -22,6 +22,7 @@ menuAddNote-newMainNote-enterNoteTitle=Ввести имя новой замет
 menuAddNote-newMainNote-openWorkspaceTab=Открыть пространство заметок?
 menuAddNote-newTemplateStandaloneNote=Новая отдельная заметка из шаблона
 menuAddNote-newTemplateItemNote=Новая элементная заметка из шаблона
+menuAddNote-importMD = Импорт файла MarkDown в качестве примечания
 
 menuAddReaderNote-newTemplateNote=Новая элементная заметка из шаблона
 
@@ -122,3 +123,4 @@ templatePicker-itemData-title=Choose Item Template Data Source
 alert-notValidCollectionError=Выберите валидную коллекцию.
 alert-notValidParentItemError=Нет валидного родительского элемента.
 alert-notValidWorkspaceNote=Заметка рабочего пространства не установлена. Создать?
+alert-syncImportedNotes = Синхронизировать импортированные заметки с файлами MarkDown?
diff --git a/addon/locale/zh-CN/addon.ftl b/addon/locale/zh-CN/addon.ftl
index 5cae6d0..7240259 100644
--- a/addon/locale/zh-CN/addon.ftl
+++ b/addon/locale/zh-CN/addon.ftl
@@ -22,6 +22,7 @@ menuAddNote-newMainNote-enterNoteTitle=请输入新笔记的标题：
 menuAddNote-newMainNote-openWorkspaceTab=现在打开笔记工作区吗？
 menuAddNote-newTemplateStandaloneNote=从模板新建独立笔记
 menuAddNote-newTemplateItemNote=从模板新建条目子笔记
+menuAddNote-importMD = 导入MarkDown为笔记
 
 menuAddReaderNote-newTemplateNote=从模板新建条目子笔记
 
@@ -80,7 +81,7 @@ syncInfo-sync=同步
 syncInfo-unSync=取消同步
 syncInfo-reveal=在文件夹中显示
 syncInfo-manager=同步管理
-syncInfo-export=导出为---
+syncInfo-export=导出为...
 syncInfo-cancel=关闭
 
 sync-start-hint=自动同步已启用, 间隔
@@ -122,3 +123,4 @@ templatePicker-itemData-title=选择条目模板数据源
 alert-notValidCollectionError=请选择一个有效的分类。
 alert-notValidParentItemError=无效的父条目。
 alert-notValidWorkspaceNote=工作区笔记未设置。创建一个吗？
+alert-syncImportedNotes = 保持导入的笔记与 MarkDown 文件同步？
diff --git a/package.json b/package.json
index 905850e..a1b3be8 100644
--- a/package.json
+++ b/package.json
@@ -70,7 +70,7 @@
     "unist-util-visit": "^4.1.2",
     "unist-util-visit-parents": "^5.1.3",
     "yamljs": "^0.3.0",
-    "zotero-plugin-toolkit": "2.1.5"
+    "zotero-plugin-toolkit": "^2.1.6"
   },
   "devDependencies": {
     "@types/browser-or-node": "^1.3.0",
diff --git a/src/hooks.ts b/src/hooks.ts
index 30e799f..39d72a9 100644
--- a/src/hooks.ts
+++ b/src/hooks.ts
@@ -44,6 +44,7 @@ import { showTemplateEditor } from "./modules/template/editorWindow";
 import {
   createNoteFromTemplate,
   createWorkspaceNote,
+  createNoteFromMD,
 } from "./modules/createNote";
 import { annotationTagAction } from "./modules/annotationTagAction";
 
@@ -302,6 +303,8 @@ const onCreateWorkspaceNote = createWorkspaceNote;
 
 const onCreateNoteFromTemplate = createNoteFromTemplate;
 
+const onCreateNoteFromMD = createNoteFromMD;
+
 // Add your hooks here. For element click, etc.
 // Keep in mind hooks only do dispatch. Don't add code that does real jobs in hooks.
 // Otherwise the code would be hard to read and maintain.
@@ -328,4 +331,5 @@ export default {
   onShowTemplateEditor,
   onCreateWorkspaceNote,
   onCreateNoteFromTemplate,
+  onCreateNoteFromMD,
 };
diff --git a/src/modules/createNote.ts b/src/modules/createNote.ts
index 3aca0e5..72ed372 100644
--- a/src/modules/createNote.ts
+++ b/src/modules/createNote.ts
@@ -1,7 +1,7 @@
 import { getString } from "../utils/locale";
 import { config } from "../../package.json";
 
-export { createWorkspaceNote, createNoteFromTemplate };
+export { createWorkspaceNote, createNoteFromTemplate, createNoteFromMD };
 
 async function createWorkspaceNote() {
   const currentCollection = ZoteroPane.getSelectedCollection();
@@ -81,3 +81,41 @@ async function createNoteFromTemplate(
     });
   }
 }
+
+async function createNoteFromMD() {
+  const currentCollection = ZoteroPane.getSelectedCollection();
+  if (!currentCollection) {
+    window.alert(getString("alert.notValidCollectionError"));
+    return;
+  }
+
+  const syncNotes = window.confirm(getString("alert-syncImportedNotes"));
+
+  const filePaths = (await new ztoolkit.FilePicker(
+    "Import MarkDown",
+    "multiple",
+    [[`MarkDown(*.md)`, `*.md`]]
+  ).open()) as string[];
+
+  if (!filePaths.length) {
+    return;
+  }
+
+  for (const filepath of filePaths) {
+    const noteItem = await addon.api.$import.fromMD(filepath, {
+      ignoreVersion: true,
+    });
+    if (noteItem && syncNotes) {
+      const pathSplit = Zotero.File.normalizeToUnix(filepath).split("/");
+      const stat = await OS.File.stat(filepath);
+      addon.api.sync.updateSyncStatus(noteItem.id, {
+        itemID: noteItem.id,
+        path: Zotero.File.normalizeToUnix(pathSplit.slice(0, -1).join("/")),
+        filename: pathSplit.pop() || "",
+        lastsync: new Date().getTime(),
+        md5: "",
+        noteMd5: Zotero.Utilities.Internal.md5(noteItem.getNote(), false),
+      });
+    }
+  }
+}
diff --git a/src/modules/export/api.ts b/src/modules/export/api.ts
index ffdf401..ac05896 100644
--- a/src/modules/export/api.ts
+++ b/src/modules/export/api.ts
@@ -68,10 +68,10 @@ async function exportNotes(
   );
   if (options.exportMD) {
     if (options.setAutoSync) {
-      const raw = await new ztoolkit.FilePicker(
+      const raw = (await new ztoolkit.FilePicker(
         `${getString("fileInterface.sync")} MarkDown File`,
         "folder"
-      ).open();
+      ).open()) as string;
       if (raw) {
         const syncDir = formatPath(raw);
         // Hard reset sync status for input notes
@@ -140,12 +140,12 @@ async function toMD(
 ) {
   let filename = options.filename;
   if (!filename) {
-    const raw = await new ztoolkit.FilePicker(
+    const raw = (await new ztoolkit.FilePicker(
       `${Zotero.getString("fileInterface.export")} MarkDown File`,
       "save",
       [["MarkDown File(*.md)", "*.md"]],
       `${noteItem.getNoteTitle()}.md`
-    ).open();
+    ).open()) as string;
     if (!raw) return;
     filename = formatPath(raw, ".md");
   }
@@ -171,24 +171,24 @@ async function toSync(
 }
 
 async function toDocx(noteItem: Zotero.Item) {
-  const raw = await new ztoolkit.FilePicker(
+  const raw = (await new ztoolkit.FilePicker(
     `${Zotero.getString("fileInterface.export")} MS Word Docx`,
     "save",
     [["MS Word Docx File(*.docx)", "*.docx"]],
     `${noteItem.getNoteTitle()}.docx`
-  ).open();
+  ).open()) as string;
   if (!raw) return;
   const filename = formatPath(raw, ".docx");
   await addon.api.$export.saveDocx(filename, noteItem.id);
 }
 
 async function toFreeMind(noteItem: Zotero.Item) {
-  const raw = await new ztoolkit.FilePicker(
+  const raw = (await new ztoolkit.FilePicker(
     `${Zotero.getString("fileInterface.export")} FreeMind XML`,
     "save",
     [["FreeMind XML File(*.mm)", "*.mm"]],
     `${noteItem.getNoteTitle()}.mm`
-  ).open();
+  ).open()) as string;
   if (!raw) return;
   const filename = formatPath(raw, ".mm");
   await addon.api.$export.saveFreeMind(filename, noteItem.id);
diff --git a/src/modules/menu.ts b/src/modules/menu.ts
index 9e8641c..c318cdb 100644
--- a/src/modules/menu.ts
+++ b/src/modules/menu.ts
@@ -108,8 +108,7 @@ export function registerMenus() {
     },
   });
 
-  // menuTools
-  // menuEdit
+  // menuFile
   const menuFileAnchor = document.querySelector(
     "#menu_newCollection"
   ) as XUL.MenuItem;
@@ -227,9 +226,21 @@ export function registerMenus() {
     "menuFile",
     {
       tag: "menuitem",
-      label: getString("menuAddNote.newMainNote"),
+      label: getString("menuAddNote-importMD"),
       icon: `chrome://${config.addonRef}/content/icons/favicon.png`,
-      commandListener: addon.hooks.onCreateWorkspaceNote,
+      commandListener: () => addon.hooks.onCreateNoteFromMD(),
+    },
+    "after",
+    menuFileAnchor
+  );
+  ztoolkit.Menu.register(
+    "menuFile",
+    {
+      tag: "menuitem",
+      label: getString("menuAddNote.newTemplateItemNote"),
+      icon: `chrome://${config.addonRef}/content/icons/favicon.png`,
+      commandListener: () =>
+        addon.hooks.onCreateNoteFromTemplate("item", "library"),
     },
     "after",
     menuFileAnchor
@@ -249,10 +260,9 @@ export function registerMenus() {
     "menuFile",
     {
       tag: "menuitem",
-      label: getString("menuAddNote.newTemplateItemNote"),
+      label: getString("menuAddNote.newMainNote"),
       icon: `chrome://${config.addonRef}/content/icons/favicon.png`,
-      commandListener: () =>
-        addon.hooks.onCreateNoteFromTemplate("item", "library"),
+      commandListener: addon.hooks.onCreateWorkspaceNote,
     },
     "after",
     menuFileAnchor
@@ -281,6 +291,12 @@ export function registerMenus() {
     commandListener: () =>
       addon.hooks.onCreateNoteFromTemplate("item", "library"),
   });
+  ztoolkit.Menu.register(newNoteMenu, {
+    tag: "menuitem",
+    label: getString("menuAddNote-importMD"),
+    icon: `chrome://${config.addonRef}/content/icons/favicon.png`,
+    commandListener: () => addon.hooks.onCreateNoteFromMD(),
+  });
 
   // create note menu in reader side panel
   ztoolkit.Menu.register(
diff --git a/src/modules/sync/api.ts b/src/modules/sync/api.ts
index dba90a1..a71426e 100644
--- a/src/modules/sync/api.ts
+++ b/src/modules/sync/api.ts
@@ -77,6 +77,7 @@ function updateSyncStatus(noteId: number, status: SyncStatus) {
   addSyncNote(noteId);
   setPref(`syncDetail-${noteId}`, JSON.stringify(status));
 }
+
 function getNoteStatus(noteId: number) {
   const noteItem = Zotero.Items.get(noteId);
   if (!noteItem?.isNote()) {
@@ -183,6 +184,16 @@ async function getMDStatus(
 }
 
 async function getMDFileName(noteId: number, searchDir?: string) {
+  const syncStatus = getSyncStatus(noteId);
+  // If the note is already synced, use the filename in sync status
+  if (
+    (!searchDir || searchDir === syncStatus.path) &&
+    syncStatus.filename &&
+    OS.File.exists(`${syncStatus.path}/${syncStatus.filename}`)
+  ) {
+    return syncStatus.filename;
+  }
+  // If the note is not synced or the synced file does not exists, search for the latest file with the same key
   const noteItem = Zotero.Items.get(noteId);
   if (searchDir !== undefined && (await OS.File.exists(searchDir))) {
     const mdRegex = /\.(md|MD|Md|mD)$/;
@@ -209,6 +220,7 @@ async function getMDFileName(noteId: number, searchDir?: string) {
       return matchedFileName;
     }
   }
+  // If no file found, use the template to generate a new filename
   return await addon.api.template.runTemplate(
     "[ExportMDFileNameV2]",
     "noteItem",