diff --git a/src/components/AppRoot.tsx b/src/components/AppRoot.tsx
index dbee96a..696c46d 100644
--- a/src/components/AppRoot.tsx
+++ b/src/components/AppRoot.tsx
@@ -15,6 +15,7 @@ import { Bounce, ToastContainer } from 'react-toastify';
 import { SettingsHome } from '~/features/settings/SettingsHome';
 import { FAQ_PAGES } from '~/faq/FAQPages';
 import { FaqHome } from '~/faq/FaqHome';
+import { DownloadAll } from '~/components/DownloadAll.tsx';
 
 // Private to this file only.
 const store = setupStore();
@@ -71,6 +72,7 @@ export function AppRoot() {
           transition={Bounce}
         />
 
+        <DownloadAll />
         <Footer />
       </Provider>
     </BrowserRouter>
diff --git a/src/components/DownloadAll.tsx b/src/components/DownloadAll.tsx
new file mode 100644
index 0000000..5975033
--- /dev/null
+++ b/src/components/DownloadAll.tsx
@@ -0,0 +1,65 @@
+import { DecryptedAudioFile, selectFiles } from '~/features/file-listing/fileListingSlice';
+import { FaDownload } from 'react-icons/fa';
+import { useAppSelector } from '~/hooks';
+import { toast } from 'react-toastify';
+
+export function DownloadAll() {
+  const files = useAppSelector(selectFiles);
+  const filesLength = Object.keys(files).length;
+  const onClickDownloadAll = async () => {
+    let dir: FileSystemDirectoryHandle | undefined;
+    let success = 0;
+    try {
+      dir = await window.showDirectoryPicker();
+    } catch (e) {
+      console.error(e);
+      if (e instanceof Error && e.name === 'AbortError') {
+        return;
+      }
+    }
+    for (const [_, file] of Object.entries(files)) {
+      try {
+        if (dir) {
+          await DownloadNew(dir, file);
+        } else {
+          await DownloadOld(file);
+        }
+        success++;
+      } catch (e) {
+        console.error(`下载失败: ${file.fileName}`, e);
+        toast.error(`出现错误: ${e}`);
+      }
+    }
+    if (success === filesLength) {
+      toast.success(`成功下载: ${success}/${filesLength}首`);
+    } else {
+      toast.error(`成功下载: ${success}/${filesLength}首`);
+    }
+  };
+
+  return (
+    <button
+      style={{ width: '48px', height: '48px', paddingInline: '0px', margin: '10px', marginLeft: 'auto' }}
+      className="btn btn-primary"
+      onClick={onClickDownloadAll}
+      title="下载全部"
+    >
+      <FaDownload />
+    </button>
+  );
+}
+
+async function DownloadNew(dir: FileSystemDirectoryHandle, file: DecryptedAudioFile) {
+  const fileHandle = await dir.getFileHandle(file.cleanName + '.' + file.ext, { create: true });
+  const writable = await fileHandle.createWritable();
+  await fetch(file.decrypted).then((res) => res.body?.pipeTo(writable));
+}
+
+async function DownloadOld(file: DecryptedAudioFile) {
+  const a = document.createElement('a');
+  a.href = file.decrypted;
+  a.download = file.cleanName + '.' + file.ext;
+  document.body.append(a);
+  a.click();
+  a.remove();
+}