The intelligent switchgear monitoring device is suitable for 35kV and below AC mental-armored movable enclosed switch cabinets, with control and online monitoring functions,able to achieve the intelligent control of circuit breaker,electric chassis, and electric grounding switch. By integrating multiple sensors, the product can carry out the real-time panoramic monitoring for contact temperature rise, control motor current,opening & closing coil current,environmental temperature & humidity,and circuit breaker switching displacement information,and it also conducts the online intelligent diagnosis for temperature rise, control motor,and operating mechanism,able to timely detect the faults and hidden dangers, which can significantly improve the power supply reliability and operating economy of the power system.