As the second defense line to guarantee safety and stable operation of a power system， security-stability control system is huge and highly complex. It is very important for the dispatcher and operation administrator to control the operation status of the system correctly and promptly. Based on the actual needs of operation management， this paper puts forward the system function and design of the management station， develops the advanced application for operation management， and proposes technological means and scheme to achieve avisualized and controllable” system. The system developed has been successfully applied on several power grids.