diff --git a/apps/pm/services.py b/apps/pm/services.py
index 057f228c..840e0841 100644
--- a/apps/pm/services.py
+++ b/apps/pm/services.py
@@ -82,8 +82,8 @@ class PmService:
                         queue.append(input_material_id)
 
 
-        # 返回各Route的任务数量/默认使用target_quantity
-        return {route.id: step_production.get(route.id, target_quantity) for route in route_qs}
+        # 返回各Route的任务数量/默认在输入物料时使用target_quantity
+        return {route.id: step_production.get(route.id, target_quantity if route.material_in.id == target_materialId else 0) for route in route_qs}
         
     @classmethod
     def cal_real_task_count(cls, count: int, rate_list):