Abstract: At present, the Chinese government has clearly defined marketization, rule of law and internationalization as the requirements for the construction of business environment. In the digital era, the World Bank has recently pioneered the “digital technologies index” as a cross-cutting evaluation indicator of the “Business Enabling Environment”, and integrated digital legislation into all the first-level evaluation indicators. These development trends show that the level of digitization and rule of law of the business environment in economies have become a key part of the international evaluation system for business environment. Although China has made fruitful achievements in the rule-of-law building of digital business environment, there are still deficiencies in benchmarking against the indicators of the international evaluation system for business environment represented by digital indicators of business enabling environment and digital business indicators. And there is a need to improve the rule of law of data governance, of platform governance as well as of digital market supervision, and the digitization capability of legislation. China should speed up the legalization process of data governance by improving the rules of data governance, and enhance the legalization level of platform governance by focusing on the integrated construction of digital platforms. In addition, China needs to promote the digital transformation of supervision by stimulating the vitality of digital market competition and accelerate the process of legislative digitization by establishing a digital rule-of-law system, so as to provide strong support for the construction of Chinese modernization.