Abstract:Against the background of rapid economic development of e-commerce platforms, the opportunistic behavior of platform merchants has not been effectively governed, and the problems of false propaganda and the proliferation of counterfeit goods are still serious. In order to improve the governance effect of e-commerce platform supervision and management, based on the analysis of the formation mechanism of the problem, we constructed a tripartite evolutionary game model of platform merchants, e-commerce platform and government, and analyzed the influencing factors and evolutionary paths of different subjects' strategy choices, so as to arrive at the combination of long-term evolutionary equilibrium strategies for the tripartite subjects. The study shows that from the perspective of saving social costs, the loose management of e-commerce platforms under strict government regulation can achieve the ideal effect, and the whole e-commerce ecosystem can develop stably with minimal social costs. Further, to address the dilemma of strict government regulation, it is proposed to empower government regulation with "digital governance" technology, introduce the theory of smart regulation into the field of e-commerce platform regulation, and utilize technologies such as big data, blockchain, and cloud computing to effectively integrate all kinds of regulatory information and systems to realize smart regulation; at the same time, a regulatory paradigm is formed in which the management of e-commerce platforms is front-loaded, the government regulates, and industry associations collaborate to achieve the desired results. At the same time, it forms a regulatory paradigm of e-commerce platform management front, government supervision, and collaboration of industry associations, so as to force platform innovation by regulatory innovation.