Based on an investigation on the reform of the administrative approval system carried out by the Governmental Affair Service Center of the People's Government of Hainan Province, this article analyzes the experience of the center in improving the quality of administrative approval service by concentrating the power, items and personnel of administrative approval, strengthening the supervision over the power of administrative approval, and optimizing the procedure of administrative approval, and points out that reforming the administrative approval management system is the key to the reform of administrative approval system, which is, in turn, the breakthrough point for the reform of the administrative system. <<