Distribution network line insulator leakage current detection device

A distribution network line insulator leakage current detection device disclosed by the present invention comprises a microcontroller and a power supply module, the microcontroller is connected with a signal acquisition module, the microcontroller is connected with a communication module, the microcontroller is connected with a circuit protection module, and the microcontroller is connected with a sensor module. The power supply module is connected with the microcontroller, the signal acquisition module, the communication module, the circuit protection module and the sensor module. According to the invention, the microcontroller is used as a core to carry out control and data processing on peripheral devices, so that data communication and sequential control of each acquisition module are realized, fault monitoring is effectively carried out on the insulator, the fault occurrence condition is timely perceived, and fault expansion is avoided; and meanwhile, the electromagnetic current sensor is adopted as a se