diff --git a/qwen3-tts-backend/api/audiobook.py b/qwen3-tts-backend/api/audiobook.py
index 6dd13d6..59a9517 100644
--- a/qwen3-tts-backend/api/audiobook.py
+++ b/qwen3-tts-backend/api/audiobook.py
@@ -457,12 +457,13 @@ async def generate_project(
     from core.database import SessionLocal
 
     chapter_index = data.chapter_index
+    force = data.force
 
     async def run_generation():
         async_db = SessionLocal()
         try:
             db_user = crud.get_user_by_id(async_db, current_user.id)
-            await _generate(project_id, db_user, async_db, chapter_index=chapter_index)
+            await _generate(project_id, db_user, async_db, chapter_index=chapter_index, force=force)
         finally:
             async_db.close()
 
diff --git a/qwen3-tts-backend/core/audiobook_service.py b/qwen3-tts-backend/core/audiobook_service.py
index b493767..0ec3044 100644
--- a/qwen3-tts-backend/core/audiobook_service.py
+++ b/qwen3-tts-backend/core/audiobook_service.py
@@ -536,7 +536,7 @@ async def _bootstrap_character_voices(segments, user, backend, backend_type: str
             logger.error(f"Failed to bootstrap voice for design_id={design.id}: {e}", exc_info=True)
 
 
-async def generate_project(project_id: int, user: User, db: Session, chapter_index: Optional[int] = None, cancel_event: Optional[asyncio.Event] = None) -> None:
+async def generate_project(project_id: int, user: User, db: Session, chapter_index: Optional[int] = None, cancel_event: Optional[asyncio.Event] = None, force: bool = False) -> None:
     project = db.query(AudiobookProject).filter(AudiobookProject.id == project_id).first()
     if not project:
         return
@@ -551,6 +551,11 @@ async def generate_project(project_id: int, user: User, db: Session, chapter_ind
             crud.update_audiobook_project_status(db, project_id, "generating")
 
         segments = crud.list_audiobook_segments(db, project_id, chapter_index=chapter_index)
+        if force:
+            for s in segments:
+                if s.status == "done":
+                    crud.update_audiobook_segment_status(db, s.id, "pending")
+            segments = crud.list_audiobook_segments(db, project_id, chapter_index=chapter_index)
         pending_segments = [s for s in segments if s.status in ("pending", "error")]
         if not pending_segments:
             if chapter_index is None:
diff --git a/qwen3-tts-backend/schemas/audiobook.py b/qwen3-tts-backend/schemas/audiobook.py
index 4dda842..e938fcc 100644
--- a/qwen3-tts-backend/schemas/audiobook.py
+++ b/qwen3-tts-backend/schemas/audiobook.py
@@ -58,6 +58,7 @@ class AudiobookAnalyzeRequest(BaseModel):
 
 class AudiobookGenerateRequest(BaseModel):
     chapter_index: Optional[int] = None
+    force: bool = False
 
 
 class AudiobookCharacterUpdate(BaseModel):
diff --git a/qwen3-tts-frontend/src/lib/api/audiobook.ts b/qwen3-tts-frontend/src/lib/api/audiobook.ts
index ba91cb0..aa86747 100644
--- a/qwen3-tts-frontend/src/lib/api/audiobook.ts
+++ b/qwen3-tts-frontend/src/lib/api/audiobook.ts
@@ -118,9 +118,10 @@ export const audiobookApi = {
     await apiClient.post(`/audiobook/projects/${projectId}/chapters/${chapterId}/parse`)
   },
 
-  generate: async (id: number, chapterIndex?: number): Promise<void> => {
+  generate: async (id: number, chapterIndex?: number, force?: boolean): Promise<void> => {
     await apiClient.post(`/audiobook/projects/${id}/generate`, {
       chapter_index: chapterIndex ?? null,
+      force: force ?? false,
     })
   },
 
diff --git a/qwen3-tts-frontend/src/pages/Audiobook.tsx b/qwen3-tts-frontend/src/pages/Audiobook.tsx
index a2765d4..cc2079c 100644
--- a/qwen3-tts-frontend/src/pages/Audiobook.tsx
+++ b/qwen3-tts-frontend/src/pages/Audiobook.tsx
@@ -737,7 +737,7 @@ function ChaptersPanel({
   generatingChapterIndices: Set<number>
   sequentialPlayingId: number | null
   onParseChapter: (chapterId: number, title?: string) => void
-  onGenerate: (chapterIndex?: number) => void
+  onGenerate: (chapterIndex?: number, force?: boolean) => void
   onParseAll: () => void
   onGenerateAll: () => void
   onProcessAll: () => void
@@ -921,6 +921,12 @@ function ChaptersPanel({
                     {ch.status === 'ready' && chAllDone && (
                       <>
                         <span className="text-[11px] text-muted-foreground">{t('projectCard.chapters.doneBadge', { count: chDone })}</span>
+                        <Button size="sm" variant="ghost" className="h-5 text-[11px] px-1.5 text-muted-foreground" disabled={loadingAction} onClick={() => {
+                          setExpandedChapters(prev => { const n = new Set(prev); n.add(ch.id); return n })
+                          onGenerate(ch.chapter_index, true)
+                        }}>
+                          <RefreshCw className="h-3 w-3 mr-1" />{t('projectCard.chapters.generate')}
+                        </Button>
                         <Button size="sm" variant="ghost" className="h-5 w-5 p-0" onClick={() => onDownload(ch.chapter_index)} title={t('projectCard.downloadAll')}>
                           <Download className="h-3 w-3" />
                         </Button>
@@ -1179,7 +1185,7 @@ export default function Audiobook() {
     }
   }, [segments, generatingChapterIndices])
 
-  const shouldPoll = isPolling || ['analyzing', 'generating'].includes(status) || hasParsingChapter || generatingChapterIndices.size > 0
+  const shouldPoll = isPolling || ['analyzing', 'generating'].includes(status) || hasParsingChapter || generatingChapterIndices.size > 0 || segments.some(s => s.status === 'generating')
 
   useEffect(() => {
     if (!shouldPoll || !selectedProjectId) return
@@ -1235,7 +1241,7 @@ export default function Audiobook() {
     }
   }
 
-  const handleGenerate = async (chapterIndex?: number) => {
+  const handleGenerate = async (chapterIndex?: number, force?: boolean) => {
     if (!selectedProject) return
     setLoadingAction(true)
     if (chapterIndex !== undefined) {
@@ -1244,7 +1250,7 @@ export default function Audiobook() {
       setIsPolling(true)
     }
     try {
-      await audiobookApi.generate(selectedProject.id, chapterIndex)
+      await audiobookApi.generate(selectedProject.id, chapterIndex, force)
       toast.success(chapterIndex !== undefined
         ? t('projectCard.chapters.generateStarted', { index: chapterIndex + 1 })
         : t('projectCard.chapters.generateAllStarted'))
@@ -1365,7 +1371,6 @@ export default function Audiobook() {
     if (!selectedProject) return
     try {
       await audiobookApi.regenerateSegment(selectedProject.id, segmentId)
-      setIsPolling(true)
       fetchSegments()
     } catch (e: any) {
       toast.error(formatApiError(e))