The utility model relates to an electric power automation monitored control system contains power module, input module (1), its input go upward signal and down signal, signal amplifier (2), it links to each other with input module (1), central processing unit (3), it possesses the AD adc module, and central processing unit (3) input links to each other with signal amplifier (2), central processing unit (3) output links to each other with trouble output module (5), IO equipment (4), it links to each other with central processing unit (3) through the RS485 bus, communication module (6), it links to each other with central processing unit (3), and outside communication equipment is given with communication fault message routing in this communication module (6), and IO equipment (4) contain LCD and trouble input buttons, and trouble output module contains and goes upward fault -signal lamp and down fault -signal lamp. This system can real time monitoring goes up, down link's operational aspect, judges the trouble information of circuit to give corresponding technical staff with the timely feedback of dependent failure information.