The purpose of the construction of education metropolitan area network is to build a three-level education information network system of schools, county (city, district) education (sports) bureaus and municipal education bureaus, and form a network system that radiates all counties (cities, districts) and all primary and secondary schools, kindergartens, vocational and technical schools and all kinds of adult education and training institutions in the city, is open to the society, and has the functions of modern distance teaching, educational information resource sharing, education and teaching management information exchange, etc., and realizes real-time video information.