diff --git a/apps/api/app/api/routes/edit_plans.py b/apps/api/app/api/routes/edit_plans.py
index 46f2036d1..e5b5a3199 100644
--- a/apps/api/app/api/routes/edit_plans.py
+++ b/apps/api/app/api/routes/edit_plans.py
@@ -35,6 +35,9 @@ from packages.adapters.sqlalchemy_impl.generation_task_repository import (
 from packages.adapters.sqlalchemy_impl.template_clip_config_repository import (
     SQLAlchemyTemplateClipConfigRepository,
 )
+from packages.adapters.sqlalchemy_impl.template_repository import (
+    SQLAlchemyTemplateRepository,
+)
 from packages.application.generation_tasks import (
     CreateGenerationTaskCommand,
     CreateGenerationTaskUseCase,
@@ -470,20 +473,39 @@ def generate_plan(
             plan_id,
             plan_check.template_id,
         )
+        # 优先从新模型 template_clip_configs 读取，若无则回退到旧模型 template_segments
         clip_config_repo = SQLAlchemyTemplateClipConfigRepository(db)
         configs = clip_config_repo.list_by_template(plan_check.template_id)
-        for cfg in configs:
-            svc.create_clip(
-                plan_id=plan_id,
-                clip_type=cfg.clip_type.value if hasattr(cfg.clip_type, "value") else cfg.clip_type,
-                order=cfg.order,
-                template_clip_config_id=cfg.id,
-                duration=cfg.default_duration,
-                transition_effect=(
-                    cfg.transition_effect.value if hasattr(cfg.transition_effect, "value") else cfg.transition_effect
-                ),
-            )
-        logger.info("自动兜底: plan=%s 从模板复制了 %d 个片段", plan_id, len(configs))
+        if configs:
+            for cfg in configs:
+                svc.create_clip(
+                    plan_id=plan_id,
+                    clip_type=cfg.clip_type.value if hasattr(cfg.clip_type, "value") else cfg.clip_type,
+                    order=cfg.order,
+                    template_clip_config_id=cfg.id,
+                    duration=cfg.default_duration,
+                    transition_effect=(
+                        cfg.transition_effect.value if hasattr(cfg.transition_effect, "value") else cfg.transition_effect
+                    ),
+                )
+            logger.info("自动兜底: plan=%s 从新模型 template_clip_configs 复制了 %d 个片段", plan_id, len(configs))
+        else:
+            # 回退到旧模型 template_segments
+            tpl_repo = SQLAlchemyTemplateRepository(db)
+            segments = tpl_repo.list_segments(plan_check.template_id)
+            for seg in segments:
+                avg_duration = (seg.duration_min + seg.duration_max) / 2
+                svc.create_clip(
+                    plan_id=plan_id,
+                    clip_type="main",  # 旧模型无结构角色，统一为主体片段
+                    order=seg.segment_order,
+                    duration=avg_duration,
+                    config={
+                        "material_type": seg.material_type or "",
+                        "template_segment_id": seg.id,
+                    },
+                )
+            logger.info("自动兜底: plan=%s 从旧模型 template_segments 复制了 %d 个片段", plan_id, len(segments))
 
     # 检查是否可生成
     try: