The invention discloses a circuit breaker reclosure switch system. A PCB circuit board is arranged on a base; the PCB circuit board comprises a main controller module, the main controller module is connected with a microswitch locating module, a motor driving module, a 485 communication module and a power module; the other end of the motor driving module is connected with a DC motor; the other endof the microswitch locating module is connected with a microswitch; the other end of the 485 communication module is connected with a remote upper computer. The DC motor is connected with one end ofa gear transmission device, and the other end of the gear transmission device is connected with a circuit breaker trip device, and the microswitch is arranged on the gear transmission device and sendsthe switch information to the microswitch locating module. The system disclosed by the invention is ingenious in structure, convenient for maintenance, and accurate in action.