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An automatic supervisory control system of power system based on GSM/GPRS Network is presented and designed. This system adopts multi-communication medium, the advance wireless communication is included, such as GSM and GPRS. The system not only reduces the labor cost and increases information reading accuracy, but also make utilities to provide accuracy load parameters and billing data to advise customs. The distributed structure of the system makes extension possible. The applications in several media utilities showed its efficiency.