diff --git a/src/i18n-strings.ts b/src/i18n-strings.ts
index 314f382..fd6d42c 100644
--- a/src/i18n-strings.ts
+++ b/src/i18n-strings.ts
@@ -45,6 +45,10 @@ export const STRINGS: Record<string, Record<string, string>> = {
     copyFailed: '复制失败：{error}',
     actionFailed: '{label}失败：{error}',
     exported: '已导出 → {path}',
+    exportCancelled: '已取消导出',
+    confirmExportOverwrite: '导出文件已存在：{path}\n是否覆盖？',
+    confirmExportCancel: '取消',
+    confirmExportOverwriteButton: '覆盖',
     noCurrentNote: '没有当前笔记',
     cacheClearedFile: '已清除缓存：{name}',
     cacheClearedAll: '已清除 {count} 条缓存',
@@ -207,6 +211,10 @@ export const STRINGS: Record<string, Record<string, string>> = {
     copyFailed: 'Copy failed: {error}',
     actionFailed: '{label} failed: {error}',
     exported: 'Exported → {path}',
+    exportCancelled: 'Export cancelled',
+    confirmExportOverwrite: 'Export file already exists: {path}\nOverwrite it?',
+    confirmExportCancel: 'Cancel',
+    confirmExportOverwriteButton: 'Overwrite',
     noCurrentNote: 'No current note',
     cacheClearedFile: 'Cleared cache: {name}',
     cacheClearedAll: 'Cleared {count} cache entries',
diff --git a/src/modal.ts b/src/modal.ts
index 11009d7..cfc754a 100644
--- a/src/modal.ts
+++ b/src/modal.ts
@@ -4,7 +4,7 @@ import { type App, Modal } from 'obsidian';
 import type { CardPatch, PluginHost, ResolvedCard } from './types';
 import { addTextButton } from './ui-helpers';
 
-export function confirmRegenerateEditedCards(
+function confirmAction(
   app: App,
   title: string,
   message: string,
@@ -35,6 +35,26 @@ export function confirmRegenerateEditedCards(
   });
 }
 
+export function confirmRegenerateEditedCards(
+  app: App,
+  title: string,
+  message: string,
+  cancelText: string,
+  confirmText: string,
+): Promise<boolean> {
+  return confirmAction(app, title, message, cancelText, confirmText);
+}
+
+export function confirmExportOverwrite(
+  app: App,
+  title: string,
+  message: string,
+  cancelText: string,
+  confirmText: string,
+): Promise<boolean> {
+  return confirmAction(app, title, message, cancelText, confirmText);
+}
+
 export class CardEditModal extends Modal {
   plugin: PluginHost;
   card: ResolvedCard;
diff --git a/src/view.ts b/src/view.ts
index 4f3cf54..6ad4a0a 100644
--- a/src/view.ts
+++ b/src/view.ts
@@ -3,7 +3,7 @@
 import { ItemView, MarkdownRenderer, Menu, Notice, TFile, type WorkspaceLeaf } from 'obsidian';
 import { activeIndexAfterCardDelete, removeCardAt, updateCardAt } from './cards';
 import { cardsToMarkdown, cardToMarkdown, cardToPlain } from './markdown';
-import { CardEditModal } from './modal';
+import { CardEditModal, confirmExportOverwrite } from './modal';
 import { activeSectionLine, nextCardIndex } from './navigation';
 import type { CardPatch, PluginHost, ResolvedCard } from './types';
 import { addIconButton, addTextButton, copyToClipboard } from './ui-helpers';
@@ -438,6 +438,17 @@ export class ParallelReaderView extends ItemView {
 
     const existing = app.vault.getAbstractFileByPath(targetPath);
     if (existing instanceof TFile) {
+      const shouldOverwrite = await confirmExportOverwrite(
+        this.app,
+        this.plugin.t('displayName'),
+        this.plugin.t('confirmExportOverwrite', { path: targetPath }),
+        this.plugin.t('confirmExportCancel'),
+        this.plugin.t('confirmExportOverwriteButton'),
+      );
+      if (!shouldOverwrite) {
+        new Notice(this.plugin.t('exportCancelled'));
+        return;
+      }
       await app.vault.modify(existing, markdown);
     } else {
       await app.vault.create(targetPath, markdown);
diff --git a/tests/i18n.test.js b/tests/i18n.test.js
index 42f0b48..2986eb6 100644
--- a/tests/i18n.test.js
+++ b/tests/i18n.test.js
@@ -27,5 +27,9 @@ assert.strictEqual(t.translate({ uiLanguage: 'zh' }, 'appTitle'), '对照阅读
 assert.strictEqual(t.translate({ uiLanguage: 'en' }, '__no_such_key__'), '__no_such_key__', 'missing key returns key');
 assert.strictEqual(t.translate({ uiLanguage: 'zh' }, 'settingTestBackendButton'), '测试');
 assert.strictEqual(t.translate({ uiLanguage: 'en' }, 'confirmRegenerateProceed'), 'Regenerate');
+assert.strictEqual(
+  t.translate({ uiLanguage: 'en' }, 'confirmExportOverwrite', { path: 'Reading/A.md' }),
+  'Export file already exists: Reading/A.md\nOverwrite it?',
+);
 
 console.log('i18n tests passed');