The method includes steps: administrator of integrated reference point (IRP) initiates request information for hanging up partial interfaces to proxy of IRP; the request information carries out parameters cited by administrator and instance parameters of basic administered objects; proxy of IRP hangs up pointed objects corresponding to instance parameters of basic administered objects, and returns hanged address back to the administrator of IRP corresponding to parameters cited by administrator. The hanged minimal granularity is object. The invention only hangs up objects needed of operation maintenance temporarily. Other actions on operation maintenance for objects are not influenced. Form operation maintenance point of view, the invention increases effective time of system so as to be accorded with technical requirements of high validity of system put forward by network management system.