diff --git a/apps/worker/worker_app/tasks/generation.py b/apps/worker/worker_app/tasks/generation.py
index fb0079eb2..e422739e9 100644
--- a/apps/worker/worker_app/tasks/generation.py
+++ b/apps/worker/worker_app/tasks/generation.py
@@ -1123,6 +1123,7 @@ def _render_video(
     resolution: str = "",
     bgm_config: dict | None = None,
     voice_ids: list[str] | None = None,
+    custom_title: str = "",
 ) -> tuple[Path, float]:
     """渲染视频（含配音混音）。
 
@@ -1169,6 +1170,20 @@ def _render_video(
             merged_bgm.get("source", ""),
         )
 
+    # 用户自定义标题覆盖模板标题（用户指定优先级最高）
+    if custom_title and custom_title.strip():
+        plan_cfg = dict(virtual_plan.config or {})
+        title_cfg = dict(plan_cfg.get("title", {}) or {})
+        title_cfg["text"] = custom_title.strip()
+        title_cfg["enabled"] = True
+        plan_cfg["title"] = title_cfg
+        virtual_plan.config = plan_cfg
+        logger.info(
+            "[task_id=%s] [渲染] 用户自定义标题已注入: title=%s",
+            task_id,
+            custom_title[:50],
+        )
+
     # 确保输出分辨率配置存在
     # 优先级：用户指定 > 模板配置 > 默认 1280x720
     # 预览模式：强制 854x480 + 低码率
@@ -1529,6 +1544,7 @@ def generate_video(self, task_id: str) -> dict:
                 resolution=_resolved_resolution,
                 bgm_config=task_info.get("bgm_config", {}),
                 voice_ids=task_info.get("voice_ids", []),
+                custom_title=task_info.get("custom_title", ""),
             )
 
             if gen_task: