Based on the ARM as the controller, the system can provide four grades high-voltage output pulse and switches automatically with BOOST and flyback transformer. The changes of the output and input signals of the electric fence can be detected by the hardware, and the working state such as protecting, net touching, short circuit and open circuit can be identified by the software. It can realize status display, remote data communication, power automatic switching, battery charging management and live sound and light alarm etc. The design has certain application prospect and has certain reference to searchers in related field.