The year 2019 is the first year of building a law-based business of environment in China. In this year，China adopted the method of promoting the building of business environment through assessment，applied the World Bank Doing Business Index to carry out assessment，and vigorously developed government business environment assessment and various third-party assessments. These assessments have accurately diagnosed the relevant problems，provided strong motive for construction，and effectively changed the features of business environment. The building of law-based business environment in China is carried out in the following four fields：legislation，administration，justice and society. China has vigorously advanced the making，revision，and abolition of laws and administrative regulations on business environment，developed a normative system with administrative regulations and local regulations as the main body，and carried out assessment index-oriented administrative reform and established a more efficient，convenient，transparent，and democratic administrative mechanism. Judicial organs have overcome the difficulties in enforcement，and safeguarded business environment with professional trial，informatization，and judicial interpretation. Mechanisms for social participation and supervision have also been extensively established.