In this paper, the intelligent demand control system was introduced. This system was composed of Intelligent demand controller, RTU(Remote Terminal Unit) and HMI(Human Machine Interface) program.The main features of developed system meter recommended by KEPCO. Secondly, the developed demand controller had a measurement function, so system could be simplified. Thirdly, network function was implemented to control a distanced loads. With program, the users who was not trained could operate system. Additionally, management based Web was considered to monitor and manage the system remotely. The system performance was proved in a several experiments.