The 4th industrial revolution and COVID-19 accelerated the spread of untact meeting and digitization in all the fields of society, accordingly, small sellers' dependence on online distribution also increased rapidly. Although the platform companies such as Kakao, Naver, Coupang, and other delivery apps make our lives to be more convenient, on the other hand, they are a major cause of various unfairness using their monopoly position and the harmful effects of monopoly. This phenomenon has not been limited to Korea, but has been observed commonly all over the world, and each government is seeking the development of legal solutions to the issue of monopoly on online platform. In particular, 2020 is a year when online platform companies showed remarkable strides during COVID-19 crisis, while the issue of monopoly of such companies has been raised and movements to correct it have spread in many countries. In Korea, when the unfair trade practices of online platform companies became controversial, the government sought a policy for digital fair economy and, in January 2021, pre-announced the legislation of an Act on Online Platform Fairness. However, the Act on Online Platform Fairness has not yet been passed due to the disagreement between the positions of protecting small businesses and of regulating platform. However, the Act on Online Platform Fairness has not yet been passed due to the disagreement between the positions of protecting small businesses and of regulating platform. If a plan for coexistence between platform operators and small business owners appropriate for the environment of expanding the online platform market is not established in the near future, not only will small business owners be forced out of competition by giant platform operators, but there is also concern that there will be no means to prevent the abuse of authority and unfair trade by platform operators in the future. Considering this, legislative measures by China government, including rationalization of legal system on the fairness of online platforms, suggest many points. Recently, the Chinese government has announced several measures to regulate monopoly and unfair competition in the online platform industry in China, and is in the process of systematizing related laws. Other majour countries are also pursuing these measures. Although the discussions on the direction of online platform regulation will continue in the future, global efforts to protect fair trade within the digital economy will also continue. Accordingly, the purpose of this study was, for the provision of basic data to the development of small business protection policy, to identify the main contents and issues of legislations on online platform fairness of China, a country that has shifted, ahead of us, from fostering to regulating online platform industry and to draw timely implications.