Abstract:We have designed an agricultural intelligent system, which consists the module of C8051F020, data acquisition of power parameter ATT7022B, GPRS/3G, LCD and interface RS485, to save the problem of safety and automated administration, coursed by low - voltage distribution net in the rural area. With many advantages, such as fast easy operation, high integration level, simple maintenance, low failure rate, strong anti-jamming ability, and so on, it is widely used in Real-time monitor and telecontrol of transformer, basing on the functions of immediate alarm, signal remote transmitting, and teleprocessing. This paper gives detailed information about hardware and software of the comprehensive monitoring system for distribution network in rural area.