diff --git a/apps/opm/services.py b/apps/opm/services.py
index bbe24378..62fc000b 100644
--- a/apps/opm/services.py
+++ b/apps/opm/services.py
@@ -41,6 +41,8 @@ def get_op_monitor(state, ticket, new_ticket_data, handler):
 
 def bind_opl(ticket: Ticket, transition: Transition, new_ticket_data: dict):
     opl = Opl.objects.get(id=new_ticket_data['opl'])
+    if opl.ticket and opl.ticket.id!=ticket.id:
+        raise ParseError('重复创建工单')
     if '有限空间' in opl.cate.name and GasCheck.objects.filter(opl=opl).count() == 0:
         raise ParseError('该许可证需填写气体检测记录!')
     if ('高处' in opl.cate.name or '动火' in opl.cate.name) and OplCert.objects.filter(opl_worker__opl=opl).count() == 0: