Abstract: Purpose/Significance It is of great theoretical value and practical significance to explore the legal status of e-commerce platform in the platform economy. Design/Methodology The e-commerce platform, through formulating platform rules, setting up enforcement bodies, organizing daily supervision, mediating disputes and imposing punishments, participates in economic management for the purpose of making up for the double defects of market and national regulation owing to the booming e-commerce economy. Therefore, it is marked by mediation, publicness, autonomy, profit making and organization. Compared with national economic management, the rule making of e-commerce platform is more consistent with the development practice of new formats, and the rule implementation mechanism is more likely to be executed. Findings/Conclusions As the major actor in economic management, e-commerce platform is qualified in economic law and its economic management function calls for the regulation and safeguard of economic law. The integration and implementation of economic law should keep pace with the times, in a bid to confirm, standardize and ensure the principal position of economic management of e-commerce platform.