diff --git a/apps/wpm/services.py b/apps/wpm/services.py
index d24fde94..ae7cff33 100644
--- a/apps/wpm/services.py
+++ b/apps/wpm/services.py
@@ -130,10 +130,10 @@ def mlog_submit(mlog: Mlog, user: User, now: Union[datetime.datetime, None]):
     supplier = mlog.supplier  # 外协
     m_ins_list = []
     if material_in:  # 需要进行车间库存管理
+        m_ins_list = []
+        m_ins_bl_list = []
         m_ins = Mlogb.objects.filter(mlog=mlog, material_in__isnull=False)
         if m_ins.exists():
-            m_ins_list = []
-            m_ins_bl_list = []
             for mi in m_ins.all():
                 m_ins_list.append((mi.material_in, mi.batch, mi.count_use, mi.wm_in))
                 if mi.count_pn_jgqbl > 0:
@@ -251,11 +251,11 @@ def mlog_revert(mlog: Mlog, user: User, now: Union[datetime.datetime, None]):
     stored_mgroup = mlog.stored_mgroup
     if material_in:
         # 领用数退回
+        m_ins_list = []
+        m_ins_bl_list = []
         into_wm_mgroup = material_in.process.into_wm_mgroup if material_in.process else False
         m_ins = Mlogb.objects.filter(mlog=mlog, material_in__isnull=False)
         if m_ins.exists():
-            m_ins_list = []
-            m_ins_bl_list = []
             for mi in m_ins.all():
                 m_ins_list.append((mi.material_in, mi.batch, mi.count_use, mi.wm_in))
                 if mi.count_pn_jgqbl > 0: