diff --git a/src-tauri/src/commands.rs b/src-tauri/src/commands.rs
index 48aa3b2..c7f0caa 100644
--- a/src-tauri/src/commands.rs
+++ b/src-tauri/src/commands.rs
@@ -77,7 +77,7 @@ pub async fn start_download(app: AppHandle, url: String, options: DownloadOption
             output_path: output_dir, 
             timestamp: chrono::Utc::now(),
             status: status.to_string(),
-            format: options.quality,
+            format: options.output_format,
         };
         
         let _ = storage::add_history_item(&app, item);
diff --git a/src-tauri/src/downloader.rs b/src-tauri/src/downloader.rs
index 5d92a01..83d762a 100644
--- a/src-tauri/src/downloader.rs
+++ b/src-tauri/src/downloader.rs
@@ -36,6 +36,7 @@ pub struct DownloadOptions {
     pub is_audio_only: bool,
     pub quality: String, // e.g., "1080", "720", "best"
     pub output_path: String, // Directory
+    pub output_format: String, // "original", "mp4", "webm", "mkv", "m4a", "aac", "opus", "vorbis", "wav", etc.
 }
 
 #[derive(Serialize, Clone, Debug)]
@@ -188,8 +189,11 @@ pub async fn download_video(
     // Formats
     if options.is_audio_only {
         args.push("-x".to_string());
-        args.push("--audio-format".to_string());
-        args.push("mp3".to_string());
+        // Only set audio format if not "original"
+        if options.output_format != "original" {
+            args.push("--audio-format".to_string());
+            args.push(options.output_format.clone());
+        }
     } else {
         let format_arg = if options.quality == "best" {
             "bestvideo+bestaudio/best".to_string()
@@ -198,6 +202,12 @@ pub async fn download_video(
         };
         args.push("-f".to_string());
         args.push(format_arg);
+        
+        // Only set merge output format if not "original"
+        if options.output_format != "original" {
+            args.push("--merge-output-format".to_string());
+            args.push(options.output_format.clone());
+        }
     }
 
     // Progress output
diff --git a/src-tauri/tauri.conf.json b/src-tauri/tauri.conf.json
index 44ecf61..3552b9d 100644
--- a/src-tauri/tauri.conf.json
+++ b/src-tauri/tauri.conf.json
@@ -12,7 +12,7 @@
   "app": {
     "windows": [
       {
-        "title": "流萤 - 视频下载",
+        "title": "流萤 - 视频下载 v1.0.0",
         "width": 1300,
         "height": 900
       }
diff --git a/src/stores/analysis.ts b/src/stores/analysis.ts
index 008e908..10bdf76 100644
--- a/src/stores/analysis.ts
+++ b/src/stores/analysis.ts
@@ -15,7 +15,8 @@ export const useAnalysisStore = defineStore('analysis', () => {
   const options = ref({
     is_audio_only: false,
     quality: 'best',
-    output_path: ''
+    output_path: '',
+    output_format: 'original'
   })
 
   function toggleEntry(id: string) {
diff --git a/src/views/Home.vue b/src/views/Home.vue
index 161decf..0ca3d5b 100644
--- a/src/views/Home.vue
+++ b/src/views/Home.vue
@@ -18,6 +18,26 @@ const qualityOptions = [
   { label: '480p', value: '480' },
 ]
 
+const videoFormatOptions = [
+  { label: '原格式', value: 'original' },
+  { label: 'MP4', value: 'mp4' },
+  { label: 'WebM', value: 'webm' },
+  { label: 'Matroska (MKV)', value: 'mkv' },
+  { label: 'FLV', value: 'flv' },
+  { label: 'AVI', value: 'avi' },
+]
+
+const audioFormatOptions = [
+  { label: '原格式', value: 'original' },
+  { label: 'MP3', value: 'mp3' },
+  { label: 'M4A', value: 'm4a' },
+  { label: 'AAC', value: 'aac' },
+  { label: 'Opus', value: 'opus' },
+  { label: 'Vorbis', value: 'vorbis' },
+  { label: 'WAV', value: 'wav' },
+  { label: 'FLAC', value: 'flac' },
+]
+
 // Sync default download path if not set
 watch(() => settingsStore.settings.download_path, (newPath) => {
     if (newPath && !analysisStore.options.output_path) {
@@ -36,6 +56,11 @@ watch(() => analysisStore.url, (newUrl) => {
     }
 })
 
+// Reset format to original when toggling audio-only mode
+watch(() => analysisStore.options.is_audio_only, () => {
+    analysisStore.options.output_format = 'original'
+})
+
 async function analyze() {
   if (!analysisStore.url) return
   analysisStore.loading = true
@@ -217,9 +242,9 @@ async function startDownload() {
              
              <!-- Left: Selection Controls -->
              <div class="flex items-center gap-2 w-full md:w-auto">
-                 <button @click="analysisStore.setAllEntries(true)" class="text-xs font-medium px-3 py-1.5 rounded-lg bg-white dark:bg-zinc-700 hover:bg-gray-100 dark:hover:bg-zinc-600 text-zinc-700 dark:text-gray-200 border border-gray-200 dark:border-zinc-600 transition-colors shadow-sm">全选</button>
-                 <button @click="analysisStore.setAllEntries(false)" class="text-xs font-medium px-3 py-1.5 rounded-lg bg-white dark:bg-zinc-700 hover:bg-gray-100 dark:hover:bg-zinc-600 text-zinc-700 dark:text-gray-200 border border-gray-200 dark:border-zinc-600 transition-colors shadow-sm">取消全选</button>
-                 <button @click="analysisStore.invertSelection()" class="text-xs font-medium px-3 py-1.5 rounded-lg bg-white dark:bg-zinc-700 hover:bg-gray-100 dark:hover:bg-zinc-600 text-zinc-700 dark:text-gray-200 border border-gray-200 dark:border-zinc-600 transition-colors shadow-sm">反选</button>
+                 <button @click="analysisStore.setAllEntries(true)" class="text-base font-medium px-3 py-1.5 rounded-lg bg-white dark:bg-zinc-700 hover:bg-gray-100 dark:hover:bg-zinc-600 text-zinc-700 dark:text-gray-200 border border-gray-200 dark:border-zinc-600 transition-colors shadow-sm">全选</button>
+                 <button @click="analysisStore.setAllEntries(false)" class="text-base font-medium px-3 py-1.5 rounded-lg bg-white dark:bg-zinc-700 hover:bg-gray-100 dark:hover:bg-zinc-600 text-zinc-700 dark:text-gray-200 border border-gray-200 dark:border-zinc-600 transition-colors shadow-sm">取消全选</button>
+                 <button @click="analysisStore.invertSelection()" class="text-base font-medium px-3 py-1.5 rounded-lg bg-white dark:bg-zinc-700 hover:bg-gray-100 dark:hover:bg-zinc-600 text-zinc-700 dark:text-gray-200 border border-gray-200 dark:border-zinc-600 transition-colors shadow-sm">反选</button>
              </div>
 
              <!-- Right: Settings -->
@@ -249,6 +274,16 @@ async function startDownload() {
                         />
                      </div>
                 </div>
+
+                <!-- Format Dropdown -->
+                <div class="flex items-center gap-3">
+                     <div class="w-48">
+                        <AppSelect 
+                          v-model="analysisStore.options.output_format"
+                          :options="analysisStore.options.is_audio_only ? audioFormatOptions : videoFormatOptions"
+                        />
+                     </div>
+                </div>
              </div>
           </div>
       </div>
@@ -298,7 +333,7 @@ async function startDownload() {
           <p v-if="analysisStore.metadata.entries" class="text-blue-500 mt-1 font-medium">{{ analysisStore.metadata.entries.length }} 个视频 (播放列表)</p>
           
           <!-- Options -->
-          <div class="grid grid-cols-1 md:grid-cols-2 gap-4 mt-6">
+          <div class="grid grid-cols-1 md:grid-cols-3 gap-4 mt-6">
              <!-- Audio Only Toggle -->
              <div class="flex items-center justify-between p-3 bg-gray-50 dark:bg-zinc-800 rounded-xl">
                 <span class="font-medium text-base">仅音频</span>
@@ -322,6 +357,14 @@ async function startDownload() {
                   :disabled="analysisStore.options.is_audio_only"
                 />
              </div>
+
+             <!-- Format Dropdown -->
+             <div class="relative">
+                <AppSelect 
+                  v-model="analysisStore.options.output_format"
+                  :options="analysisStore.options.is_audio_only ? audioFormatOptions : videoFormatOptions"
+                />
+             </div>
           </div>
         </div>
       </div>