The invention relates to a series compensation device provided with a real-time state monitoring integrated platform. The series compensation device comprises a capacitor, a metal oxide voltage limiter, a spark gap, a damping device and a bypass circuit breaker, and is characterized by further comprising the state monitoring integrated platform used for performing real-time state monitoring on theseries compensation device, wherein the state monitoring integrated platform comprises a state monitoring platform, a capacitor temperature monitoring unit, a current monitoring module, a voltage limiter monitoring module and a spark gap monitoring module. The series compensation device effectively monitors states of equipment by adopting an advanced technical means, adopts a series compensationequipment monitoring communication control technology based on an IEC61850 protocol, acquires state monitoring information of key equipment such as the series compensation capacitor, the voltage limiter and the spark gap in real time, helps to discover and eliminate threats of equipment state deterioration to safe and stable operation of a power grid timely, and ensures the safe, stable and reliable power supply of the power grid.