The invention discloses a campus network topology optimization method. Plans in various local area networks are not the same for different user groups. The invention discloses a campus network plan, and the users are students and campus office staff mainly. The method has the characteristics of many users, relatively simple business, huge network flow, short failure recovery required time and the like. The campus network plan disclosed by the invention hopes to follow information campus network construction to construct a unique campus network, requires the campus network with digitalization, intelligence, high cost, convenient and flexible management and high degree of safety and has three functions of teaching, management and communication, sharing of information resources and software and hardware resources in the whole campus range is realized, and the abundant network information services are obtained therefrom to promote digitalized and information construction of the whole campus.