diff --git a/apps/mtm/models.py b/apps/mtm/models.py
index 8746b87d..f6fb10eb 100644
--- a/apps/mtm/models.py
+++ b/apps/mtm/models.py
@@ -476,7 +476,7 @@ class Route(CommonADModel):
         return rqs
 
     @classmethod
-    def validate_dag(cls, final_material_out:Material, rqs):
+    def validate_dag(cls, final_material_out:Material, rqs, check_input=True):
             """
             TN:校验工艺路线是否正确：
             - 所有 Route 必须有 material_in 和 material_out
@@ -507,7 +507,7 @@ class Route(CommonADModel):
 
             # 3. 检查final_material_out是否是终点
             final_id = final_material_out.id
-            if final_id in reverse_graph:
+            if check_input and final_id in reverse_graph:
                 # raise ParseError(
                 #     f"最终物料 {final_material_out.name}(ID:{final_id}) 不能作为任何Route的输入"
                 # )
diff --git a/apps/pm/services.py b/apps/pm/services.py
index bfbb369b..ac51ade9 100644
--- a/apps/pm/services.py
+++ b/apps/pm/services.py
@@ -211,14 +211,18 @@ class PmService:
                 if not gjson_item:
                     raise ParseError("缺少该产品的生产子图")
                 rqs = Route.get_routes(routeIds=gjson_item["routes"])
+                if not rqs.exists():
+                    raise ParseError('未配置工艺路线')
+                Route.validate_dag(product, rqs)
             else:
                 rqs = Route.get_routes(material=product)
+                if not rqs.exists():
+                    raise ParseError('未配置工艺路线')
+                Route.validate_dag(product, rqs, check_input=False)
 
-            if not rqs.exists():
-                raise ParseError('未配置工艺路线')
+            
             
             # 通过出材率校正任务数, out_rate 默认为 100
-            Route.validate_dag(product, rqs)
             r_count_dict = cls.cal_x_task_count(product.id, count, rqs)
             
             # 创建小任务