diff --git a/manifest.json b/manifest.json
index 55df52e..cc65e25 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,7 +1,7 @@
 {
   "id": "istart-note-ai",
   "name": "IStart-Note-AI",
-  "version": "1.7.0",
+  "version": "1.7.1",
   "minAppVersion": "1.4.0",
   "description": "Generate structured knowledge notes from questions and selected text using DeepSeek AI, with automatic concept pages, bidirectional links, and a question graph.",
   "author": "Yan",
diff --git a/package.json b/package.json
index f33a2e7..1c6def9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "istart-note-ai",
-  "version": "1.7.0",
+  "version": "1.7.1",
   "description": "IStart-Note-AI: DeepSeek-powered knowledge graph plugin for Obsidian",
   "main": "main.js",
   "scripts": {
diff --git a/src/features/sync/BaiduSyncService.ts b/src/features/sync/BaiduSyncService.ts
index 8d3ec29..987cb1e 100644
--- a/src/features/sync/BaiduSyncService.ts
+++ b/src/features/sync/BaiduSyncService.ts
@@ -139,6 +139,14 @@ export class BaiduSyncService {
 
     result.skipped = plans.length - uploadPlans.length;
     await this.saveMeta(meta);
+
+    // 备份插件本身
+    if (this.config.backupPlugin) {
+      const pluginResult = await this.backupPlugin();
+      result.uploaded += pluginResult.uploaded;
+      result.failed += pluginResult.failed;
+    }
+
     return result;
   }
 
@@ -387,6 +395,72 @@ export class BaiduSyncService {
     return false;
   }
 
+  /**
+   * 备份插件本身（main.js, manifest.json, styles.css, data.json）到百度云。
+   * 文件存储在 {remotePath}/_plugin/ 目录下。
+   */
+  async backupPlugin(): Promise<{ uploaded: number; failed: number }> {
+    if (!this.config.backupPlugin) return { uploaded: 0, failed: 0 };
+
+    const pluginDir = ".obsidian/plugins/istart-note-ai";
+    const filesToBackup = ["main.js", "manifest.json", "styles.css", "data.json"];
+    const remotePluginDir = `${this.config.remotePath}/_plugin`.replace(/\/+/g, "/");
+
+    await this.client.mkdir(remotePluginDir);
+
+    let uploaded = 0;
+    let failed = 0;
+
+    for (const fileName of filesToBackup) {
+      const localPath = `${pluginDir}/${fileName}`;
+      try {
+        const exists = await this.app.vault.adapter.exists(localPath);
+        if (!exists) continue;
+
+        const content = await this.app.vault.adapter.readBinary(localPath);
+        const remotePath = `${remotePluginDir}/${fileName}`;
+        const ok = await this.client.uploadFile(content, remotePath);
+        if (ok) uploaded++;
+        else failed++;
+      } catch {
+        // 文件不存在或读取失败，跳过
+      }
+    }
+
+    return { uploaded, failed };
+  }
+
+  /**
+   * 从百度云恢复插件文件到本地。
+   */
+  async restorePlugin(): Promise<{ downloaded: number; failed: number }> {
+    const remotePluginDir = `${this.config.remotePath}/_plugin`.replace(/\/+/g, "/");
+    const pluginDir = ".obsidian/plugins/istart-note-ai";
+
+    // 确保本地插件目录存在
+    const dirExists = await this.app.vault.adapter.exists(pluginDir);
+    if (!dirExists) await this.app.vault.adapter.mkdir(pluginDir);
+
+    const remoteFiles = await this.client.listFiles(remotePluginDir);
+    let downloaded = 0;
+    let failed = 0;
+
+    for (const entry of remoteFiles) {
+      if (entry.isdir) continue;
+      try {
+        const content = await this.client.downloadFile(entry.path);
+        if (!content) { failed++; continue; }
+        const localPath = `${pluginDir}/${entry.server_filename}`;
+        await this.app.vault.adapter.writeBinary(localPath, content);
+        downloaded++;
+      } catch {
+        failed++;
+      }
+    }
+
+    return { downloaded, failed };
+  }
+
   private async writeLocalFile(localPath: string, content: ArrayBuffer) {
     const dir = localPath.substring(0, localPath.lastIndexOf("/"));
     if (dir) {
diff --git a/src/settings/SettingsTab.ts b/src/settings/SettingsTab.ts
index 64b4a0a..ccd4638 100644
--- a/src/settings/SettingsTab.ts
+++ b/src/settings/SettingsTab.ts
@@ -190,6 +190,16 @@ export class DeepSeekSettingsTab extends PluginSettingTab {
           })
         );
 
+      new Setting(containerEl)
+        .setName("备份插件本身")
+        .setDesc("备份时包含插件文件（main.js、配置等），方便换设备恢复")
+        .addToggle((t) =>
+          t.setValue(this.plugin.settings.baiduSync.backupPlugin).onChange(async (v) => {
+            this.plugin.settings.baiduSync.backupPlugin = v;
+            await this.plugin.saveSettings();
+          })
+        );
+
       new Setting(containerEl)
         .setName("忽略规则")
         .setDesc("正则表达式，匹配的文件路径将被跳过")
diff --git a/src/types.ts b/src/types.ts
index ad812d1..489c3fb 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -19,6 +19,7 @@ export interface BaiduSyncConfig {
   tokenExpiresAt: string;  // ISO 时间字符串
   remotePath: string;      // 远端备份根目录，如 /apps/istart-note-ai
   autoBackup: boolean;     // 每次生成笔记后自动备份
+  backupPlugin: boolean;   // 备份时包含插件本身
   ignorePattern: string;   // 忽略规则（正则）
   fileSizeLimitMB: number; // 单文件大小限制
 }
@@ -32,6 +33,7 @@ export const DEFAULT_BAIDU_SYNC_CONFIG: BaiduSyncConfig = {
   tokenExpiresAt: "",
   remotePath: "/apps/istart-note-ai",
   autoBackup: false,
+  backupPlugin: false,
   ignorePattern: "",
   fileSizeLimitMB: 100,
 };
diff --git a/versions.json b/versions.json
index eec70cc..a141138 100644
--- a/versions.json
+++ b/versions.json
@@ -10,5 +10,6 @@
   "1.5.7": "1.4.0",
   "1.6.0": "1.4.0",
   "1.6.1": "1.4.0",
-  "1.7.0": "1.4.0"
+  "1.7.0": "1.4.0",
+  "1.7.1": "1.4.0"
 }