diff --git a/src/components/dialog/ReorganizeDialog.vue b/src/components/dialog/ReorganizeDialog.vue
index 830a6535..617d578b 100644
--- a/src/components/dialog/ReorganizeDialog.vue
+++ b/src/components/dialog/ReorganizeDialog.vue
@@ -489,14 +489,17 @@ watch([() => transferForm.type_name, () => mediaSource.value], ([typeName, sourc
   episodeGroups.value = []
 })
 
-// 音乐默认使用 MusicBrainz；已显式选择其它音乐源时保留用户选择。
+// 切换媒体类型时，若当前数据源与新类型不兼容则回退到自动，
+// 避免音乐源在影视整理中残留；音乐类型未显式选择来源时由 mediaSource 兜底为 MusicBrainz。
 watch(
   () => transferForm.type_name,
   typeName => {
-    if (typeName === '音乐' && !isMusicMediaSource(transferForm.media_source ?? undefined)) {
-      transferForm.media_source = 'musicbrainz'
+    const isMusicType = typeName === '音乐'
+    const sourceIsMusic = isMusicMediaSource(transferForm.media_source ?? undefined)
+    if (isMusicType !== sourceIsMusic) {
+      transferForm.media_source = null
     }
-    transferForm.music_type = typeName === '音乐' ? (transferForm.music_type ?? 'recording') : null
+    transferForm.music_type = isMusicType ? (transferForm.music_type ?? 'recording') : null
   },
 )
 
@@ -1519,10 +1522,13 @@ onUnmounted(() => {
                       prepend-inner-icon="mdi-music-box-multiple"
                     />
                   </VCol>
-                  <VCol cols="12" :md="transferForm.type_name === '音乐' ? 3 : 4">
+                  <VCol
+                    v-if="transferForm.type_name !== ''"
+                    cols="12"
+                    :md="transferForm.type_name === '音乐' ? 3 : 4"
+                  >
                     <VTextField
                       v-model="transferForm.media_id"
-                      :disabled="transferForm.type_name === ''"
                       :label="mediaIdLabel"
                       :placeholder="t('dialog.reorganize.mediaIdPlaceholder')"
                       :rules="[validateMediaId]"
diff --git a/src/components/dialog/__tests__/ReorganizeDialog.spec.ts b/src/components/dialog/__tests__/ReorganizeDialog.spec.ts
index c89e9bdd..d9457943 100644
--- a/src/components/dialog/__tests__/ReorganizeDialog.spec.ts
+++ b/src/components/dialog/__tests__/ReorganizeDialog.spec.ts
@@ -477,6 +477,36 @@ describe('ReorganizeDialog payloads and lifecycle', () => {
     expect(screen.getByLabelText<HTMLSelectElement>('数据源')).toHaveDisplayValue('自动')
   })
 
+  it('resets the data source to auto and hides the media id input after switching media type', async () => {
+    await renderDialog()
+
+    // 类型为自动时隐藏媒体ID输入框
+    expect(screen.queryByLabelText('TheMovieDb编号')).not.toBeInTheDocument()
+
+    // 切换到音乐：显示媒体ID输入框，数据源保持自动（音乐由媒体ID标签兜底为 MusicBrainz）
+    await selectOption('类型', 3)
+    await waitFor(() => expect(screen.getByLabelText('MusicBrainz ID')).toBeInTheDocument())
+    expect(screen.getByLabelText<HTMLSelectElement>('数据源')).toHaveDisplayValue('自动')
+
+    // 切回电影：数据源自动回退为自动，媒体ID输入框随类型重新显示
+    await selectOption('类型', 1)
+    await waitFor(() => expect(screen.getByLabelText('TheMovieDb编号')).toBeInTheDocument())
+    expect(screen.getByLabelText<HTMLSelectElement>('数据源')).toHaveDisplayValue('自动')
+  })
+
+  it('resets a stale music source back to auto when switching away from music type', async () => {
+    await renderDialog()
+
+    // 先手动选择音乐源（触发类型联动为音乐）
+    await selectOption('数据源', 5)
+    await waitFor(() => expect(screen.getByLabelText<HTMLSelectElement>('类型')).toHaveDisplayValue('音乐'))
+
+    // 切回电影后，音乐源不应残留
+    await selectOption('类型', 1)
+    await waitFor(() => expect(screen.getByLabelText<HTMLSelectElement>('数据源')).toHaveDisplayValue('自动'))
+    expect(screen.getByLabelText<HTMLSelectElement>('类型')).toHaveDisplayValue('电影')
+  })
+
   it('deduplicates selected files and submits nullable automatic target fields in one background request', async () => {
     const bodies: unknown[] = []
     const backgrounds: string[] = []
@@ -702,6 +732,8 @@ describe('ReorganizeDialog payloads and lifecycle', () => {
     const user = userEvent.setup()
     await renderDialog()
 
+    // 类型为自动时媒体ID输入框隐藏，先选择类型再查询媒体编号
+    await selectOption('类型', 2)
     await user.click(screen.getByRole('button', { name: '查询媒体编号' }))
     await user.click(screen.getByRole('button', { name: '选择电视剧' }))
     await waitFor(() => expect(screen.getByRole('option', { name: '播出顺序' })).toBeInTheDocument())
diff --git a/src/locales/en-US.ts b/src/locales/en-US.ts
index 98b14cb4..24e98b53 100644
--- a/src/locales/en-US.ts
+++ b/src/locales/en-US.ts
@@ -3345,6 +3345,7 @@ export default {
       doubanId: 'Douban ID',
       bangumiId: 'Bangumi ID',
       anilistId: 'AniList ID',
+      mediaId: 'Media ID',
       mediaIdHint: 'Query media ID by name, leave empty for auto recognition',
       mediaIdPlaceholder: 'Leave empty for auto recognition',
       mediaIdInvalid: 'Invalid media ID format',
diff --git a/src/locales/zh-CN.ts b/src/locales/zh-CN.ts
index 1901651e..acd31906 100644
--- a/src/locales/zh-CN.ts
+++ b/src/locales/zh-CN.ts
@@ -3289,6 +3289,7 @@ export default {
       doubanId: '豆瓣编号',
       bangumiId: 'Bangumi编号',
       anilistId: 'AniList编号',
+      mediaId: '媒体 ID',
       mediaIdHint: '按名称查询媒体编号，留空自动识别',
       mediaIdPlaceholder: '留空自动识别',
       mediaIdInvalid: '媒体ID格式无效',
diff --git a/src/locales/zh-TW.ts b/src/locales/zh-TW.ts
index e3598c68..d14e754f 100644
--- a/src/locales/zh-TW.ts
+++ b/src/locales/zh-TW.ts
@@ -3287,6 +3287,7 @@ export default {
       doubanId: '豆瓣編號',
       bangumiId: 'Bangumi編號',
       anilistId: 'AniList編號',
+      mediaId: '媒體 ID',
       mediaIdHint: '按名稱查詢媒體編號，留空自動識別',
       mediaIdPlaceholder: '留空自動識別',
       mediaIdInvalid: '媒體ID格式無效',