Since the 18th National Congress，the Central government has been earnestly promoting the reform of “delegation of power and optimization of government service” to stimulate the vitality of the socialist market economy and promote the sustained and healthy development of the national economy. In the marketization，facilitation，legalization and internationalization of the business environment，city governments have continuously carried out institutional innovation and achieved obvious results. At the same time，due to the late establishment of China’s market economy，there is still a certain gap in business environment between China and advanced countries. In response to the increasingly severe international economic situation and the downward pressure on the domestic economy，urban decision-makers must summarize the experience of the reform in the past few years，continue to optimize the business environment，and maintain a stable and sustained economic development.