This paper aims to solve these difficulties: the conventional ATS abtaining information is limited and can’t meet the needs of different operation modes; energy management system (EMS) based regional standby power source system acts for a long time, and so on. This paper presents an area ATS based on real-time information automatic switching control system and details the overall scheme of the system, the embodiments, area ATS adaptation range and logic. According to changes in demand for power grid operation and increase in the transmission of information between substations, it proposes the research of area ATS logic and inter-station communication technology. The application in the Licheng 110 kV power grid of Guangzhou improves the Licheng regional power grid reliability. It has positive significance to area ATS engineering application in the future.