The standardization of government services is a key issue in building a service-oriented government that people are satisfied with. By introducing the "structure-mechanism-behavior-interaction" (SMBI) framework and combining the process of standardization reform of government service in S province and N city, this paper compares the different attitudes and practices of provinces, cities, districts and counties in the face of standardization reform, and points out that the differentiated allocation of authority of government service departments is one of the important reasons for the cooperative governance problems in the standardization reform of government service. On this basis, the strong correlation between standardization and performance appraisal mechanism can easily lead to reform becoming a tool for organizations to "self-prove", increasing the burden of grassroots government service departments work and causing contradictions in inter-governmental relations. However, the grassroots officials can take the lead in breaking through the authority of the bureaucracy to seek innovation and flexibility through more contact with the public, and promote the development of service-oriented government. In practice, the standardization of government service has both technical tools and administrative processes. It is necessary to coordinate the contradictions between governments and strengthen the contact between government service departments and the outside world based on the principle of "active complementarity". In the process of analyzing the standardization of government service, this paper adds the influence of meso-structure, mechanism, micro-behavior and interaction on reform, and study the relationship between organizational system design and individual behavior, which is helpful to grasp this political process more truly.