In the context of the country's socio-economic development, the trend of integration and democratization of all aspects of life of the State and society, the superiority of society is reflected specifically in the provision of public administrative services. If public administrative service delivery is postponed or provided inadequately with low quality, it will cause disturbances in society. Therefore, in recent years, our State has actively and proactively implemented delegation and decentralization in the provision of public administrative services. In this article, the authors take in-depth research on the criteria for evaluating the effectiveness of decentralized activities in public service delivery in Vietnam today.