diff --git a/apps/worker/worker_app/tasks/viral_video.py b/apps/worker/worker_app/tasks/viral_video.py
index 156a0554e..5f02a5150 100644
--- a/apps/worker/worker_app/tasks/viral_video.py
+++ b/apps/worker/worker_app/tasks/viral_video.py
@@ -1398,15 +1398,79 @@ def _step_review(job: ViralVideoJob, copy_result: dict) -> dict:
         return {"passed": True, "score": 75, "details": {}, "issues": []}
 
 
+def _resolve_tts_voice_id(job: ViralVideoJob) -> str:
+    """#2188: 根据 voice_source + voice_id 解析真正传给 CosyVoice 的 voice_id。
+
+    - voice_source 在 ("my_voice", "clone")：voice_id 是 VoiceCloneProfile.id，
+      需要从 DB 查 profile.voice_id（CosyVoice 返回的音色 ID）。
+    - 其他/空：voice_id 直接视为 CosyVoice preset 音色名（longxiaochun_v3 等）。
+    - 任何解析失败都回退默认 longxiaochun_v3，保证任务不崩。
+    """
+    default_voice = "longxiaochun_v3"
+    raw_voice_id = (getattr(job, "voice_id", "") or "").strip()
+    voice_source = (getattr(job, "voice_source", "") or "").strip().lower()
+
+    if not raw_voice_id:
+        return default_voice
+
+    # 克隆音色：前端传 profile.id，需查 DB 取 cosyvoice_voice_id
+    if voice_source in ("my_voice", "clone"):
+        session = None
+        try:
+            from packages.adapters.sqlalchemy_impl.voice_clone_profile_repository import (
+                SQLAlchemyVoiceCloneProfileRepository,
+            )
+
+            session = SessionLocal()
+            _repo = SQLAlchemyVoiceCloneProfileRepository(session)
+            _profile = _repo.get(raw_voice_id)
+            if _profile and _profile.status.value == "ready" and (_profile.voice_id or "").strip():
+                logger.info(
+                    "[爆款视频] 克隆音色解析: profile_id=%s → cosyvoice_voice_id=%s",
+                    raw_voice_id,
+                    _profile.voice_id,
+                )
+                return _profile.voice_id.strip()
+            # 找不到/未就绪/无voice_id
+            if _profile is None:
+                logger.warning("[爆款视频] 克隆音色 profile_id=%s 不存在，回退默认音色", raw_voice_id)
+            elif _profile.status.value != "ready":
+                logger.warning(
+                    "[爆款视频] 克隆音色 profile_id=%s 状态=%s 未就绪，回退默认音色",
+                    raw_voice_id,
+                    _profile.status.value,
+                )
+            else:
+                logger.warning("[爆款视频] 克隆音色 profile_id=%s 就绪但 voice_id 为空，回退默认音色", raw_voice_id)
+            return default_voice
+        except Exception as _e:
+            logger.warning("[爆款视频] 克隆音色解析异常 profile_id=%s err=%s，回退默认音色", raw_voice_id, _e)
+            return default_voice
+        finally:
+            if session is not None:
+                try:
+                    session.close()
+                except Exception:
+                    pass
+
+    # preset/my-voice 直传/空 source：voice_id 就是 CosyVoice 音色名
+    return raw_voice_id or default_voice
+
+
 def _step_tts(job: ViralVideoJob, voiceover_script: str):
-    """步骤 5: CosyVoice 整段配音 → 返回本地 MP3 Path；失败返回 None。"""
+    """步骤 5: CosyVoice 整段配音 → 返回本地 MP3 Path；失败返回 None。
+
+    #2188: 支持 voice_source='my_voice'/'clone'，先把前端传的 profile.id
+    解析成 CosyVoice 真正的克隆音色 voice_id，再走同一条 synthesize 链路。
+    """
     try:
         from pathlib import Path as _Path
 
         from apps.worker.services.tts_service_factory import get_tts_service
 
         tts_service = get_tts_service()
-        voice_id = (getattr(job, "voice_id", "") or "").strip()
+        # #2188: 根据 voice_source 解析实际传给 CosyVoice 的 voice_id
+        voice_id = _resolve_tts_voice_id(job)
         text = (voiceover_script or "").strip()
         if not text:
             logger.warning("[爆款视频] voiceover_script 为空，跳过 TTS")
@@ -1414,21 +1478,19 @@ def _step_tts(job: ViralVideoJob, voiceover_script: str):
         try:
             result = tts_service.synthesize(
                 text=text,
-                voice_id=voice_id or "longxiaochun_v3",
+                voice_id=voice_id,
                 format="mp3",
             )
         except TypeError:
             try:
-                result = tts_service.synthesize(text=text, voice_id=voice_id or "longxiaochun_v3")
+                result = tts_service.synthesize(text=text, voice_id=voice_id)
             except TypeError:
                 result = tts_service.synthesize(text=text)
         if result is None:
             return None
         p = _Path(result) if not isinstance(result, _Path) else result
         if p.exists() and p.stat().st_size > 0:
-            logger.info(
-                "[爆款视频] TTS 合成完成: voice=%s path=%s size=%d", voice_id or "longxiaochun_v3", p, p.stat().st_size
-            )
+            logger.info("[爆款视频] TTS 合成完成: voice=%s path=%s size=%d", voice_id, p, p.stat().st_size)
             return p
         logger.warning("[爆款视频] TTS 返回路径不存在或空文件: %s", p)
         return None