New power grid is the trend of future development,and intelligent substation is one of the power grid service terminal equipment,and its operation and maintenance technology directly affects the safe and stable operation of the pow-er grid.The current situation and existing problems of the construction of intelligent substation is introduced,summarizes the technical requirements and development trend from the aspects of equipment operation and safety maintenance,and puts forward relevant suggestions to improve the operation safety of intelligent substation,so as to provide technical sup-port for the construction of new power system.