The invention discloses an access control method of an administrative information system based on data sharing and exchange. The administrative information system comprises a cloud data sharing center, a data management platform, a data warehouse, a senior government platform, an intermediate government platform, a primary government platform, a branch office platform and a client, the data management platform, the senior government platform, the intermediate government platform and the primary government platform all interact with a cloud data sharing center, the senior government platform, the intermediate government platform and the primary government platform are all connected with the data management platform, and the data management platform is connected with the data warehouse. According to the access control method, the established sharing and exchange platform achieves the collaborative processing, information flow and information sharing among citizens, governments and government departments at all levels, realizes network communication, data communication, and business communication, solves the problem of repeated establishment and system complexity of all levels of administrative systems, reduces the waste of resources and greatly reduces economic losses; and the data processing efficiency is high.