The utility model relates to an intelligent substation SF6 breaker state monitored control system. Its characteristics are: including monitor terminal, this monitor terminal passes through the RS485 network and is connected with monitoring device, and this monitoring device passes through the RS485 network and monitor the basic station to be connected, should monitor the basic station and be connected with the surveillance center through wired or wireless communication. Compared with the prior art, the utility model has the advantages of: the utility model discloses a state information of real -time supervision SF6 circuit breaker, analysis processes is carried out to data collection information, improves power supply system's reliability, avoids the power failure to safeguard the loss that leads to the fact, simultaneously, can carry out the early warning to analysis result and handle, improve the science of maintaining the maintenance, validity, on -line monitoring, convenient high efficiency are implemented to maintainer accessible remote communications equipment.