diff --git a/core/backend/apps/ai/migrations/0014_video_prompt_dialogue_no_meta.py b/core/backend/apps/ai/migrations/0014_video_prompt_dialogue_no_meta.py
new file mode 100644
index 0000000..2442244
--- /dev/null
+++ b/core/backend/apps/ai/migrations/0014_video_prompt_dialogue_no_meta.py
@@ -0,0 +1,29 @@
+from django.db import migrations
+
+# 视频提示词模板更新:时长/比例靠 API 参数传(不写正文)、台词带说话人(在 build 里)、
+# 尾句改风格 + 音效/字幕要求。DB 模板覆盖代码默认,故这里同步刷新 video_segment 那行。
+NEW = (
+    "{设定}{分镜}【脚本】{脚本}\n"
+    "电商带货短视频，商品露出清晰，节奏有转化感。不要字幕，不要背景音乐，但是要有音效，逼真的音效。"
+)
+OLD = "{设定}{分镜}【脚本】{脚本}\n{时长}s · 9:16 竖屏电商带货短视频，镜头稳定，商品露出清晰，节奏有转化感。"
+
+
+def _set(apps, template):
+    PromptTemplate = apps.get_model("ai", "PromptTemplate")
+    PromptTemplate.objects.filter(key="video_segment").update(template=template)
+
+
+def forwards(apps, schema_editor):
+    _set(apps, NEW)
+
+
+def backwards(apps, schema_editor):
+    _set(apps, OLD)
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [("ai", "0013_seed_prompt_templates")]
+
+    operations = [migrations.RunPython(forwards, backwards)]
diff --git a/core/backend/apps/ai/services.py b/core/backend/apps/ai/services.py
index a6fbeaf..2823d11 100644
--- a/core/backend/apps/ai/services.py
+++ b/core/backend/apps/ai/services.py
@@ -1094,16 +1094,33 @@ def _scene_context(project) -> str:
     return " · ".join(parts)
 
 
-def _segment_script_text(segment) -> str:
-    """本镜脚本文本(画面 + 口播/旁白 + 商品露出),拼进故事板/视频提示词的【分镜脚本】。"""
+def _segment_script_text(segment, entities=None, *, with_dialogue: bool = False, with_exposure: bool = True) -> str:
+    """本镜脚本文本(画面 + 台词/口播 + 商品露出),拼进故事板/视频提示词的【分镜脚本】。
+    with_dialogue:有结构化对白时按「说话人：台词」原样放(说话人 id 用 entities 解析成名字),回退扁平 narration。
+    with_exposure:是否带「商品露出:…」一行。"""
     parts = []
     visual = (segment.visual_prompt or "").strip()
     if visual:
         parts.append(f"画面:{visual}")
-    narration = (segment.narration or "").strip()
-    if narration:
-        parts.append(f"口播/旁白:{narration}")
-    if getattr(segment, "product_exposure", ""):
+    dialogue = getattr(segment, "dialogue", None) if with_dialogue else None
+    name_by_id = {e.get("id"): (e.get("name") or "").strip() for e in (entities or []) if isinstance(e, dict)}
+    lines = []
+    if isinstance(dialogue, list):
+        for d in dialogue:
+            if not isinstance(d, dict):
+                continue
+            line = (d.get("line") or "").strip()
+            if not line:
+                continue
+            spk = name_by_id.get(d.get("speaker")) or ""
+            lines.append(f"{spk}：{line}" if spk else line)
+    if lines:  # 有对白 → 用带说话人的台词
+        parts.append("台词:\n" + "\n".join(lines))
+    else:  # 无对白 → 回退扁平口播/旁白
+        narration = (segment.narration or "").strip()
+        if narration:
+            parts.append(f"口播/旁白:{narration}")
+    if with_exposure and getattr(segment, "product_exposure", ""):
         parts.append(f"商品露出:{segment.product_exposure.strip()}")
     return "\n".join(parts)
 
@@ -1141,12 +1158,15 @@ def build_video_segment_prompt(project, video_segment, scene, refs, user_prompt:
             storyboard_idx = n
         else:
             setup_parts.append(f"@图{n}是{r.get('label') or ''}({_ENTITY_TYPE_CN.get(r.get('type'), '参考')})")
-    script_text = _segment_script_text(scene) if scene is not None else ""
+    # 视频脚本:用带说话人的台词(原样照脚本),不带「商品露出」那行(露出靠模板尾句统一要求)
+    entities = (project.metadata or {}).get("script_entities", [])
+    script_text = _segment_script_text(scene, entities, with_dialogue=True, with_exposure=False) if scene is not None else ""
     extra = (user_prompt or "").strip()
     if extra:
         script_text = (script_text + "\n" + extra).strip() if script_text else extra
     # 正文可在 admin「提示词·视频」页改。占位符:{设定}=@图N点名、{分镜}=分镜图引用、{脚本}=本段脚本、{时长}。
-    default = "{设定}{分镜}【脚本】{脚本}\n{时长}s · 9:16 竖屏电商带货短视频，镜头稳定，商品露出清晰，节奏有转化感。"
+    # 时长/比例靠 API 参数传(duration/ratio),不写进正文;尾句给风格 + 音效/字幕要求。
+    default = "{设定}{分镜}【脚本】{脚本}\n电商带货短视频，商品露出清晰，节奏有转化感。不要字幕，不要背景音乐，但是要有音效，逼真的音效。"
     rendered = render_prompt(
         "video_segment", default,
         设定=("【设定】" + "，".join(setup_parts) + "。\n" if setup_parts else ""),