On March 31, 2017, the Third Roundtable on Cyberspace and Information Law and the Seminar on the Rules of Network platforms were successfully held in Beijing. The roundtable was sponsored by the Cyberspace and Information Law Research Committee of China Law Society, and jointly organized by CASS Center for the Study of Culture and Legal System, Cyberspace and Information Law Department of CASS Law Institute and the Alliance of New Governance Think Tank. It is an interdisciplinary and cross-cutting small pragmatic meeting mechanism participated by the government, the internet and information industry, the academic circle and the mass media. Its purpose is to facilitate discussions on major issues in the development of the legal system of cyberspace and information and to provide advices and suggestions to the government on dealing with these issues. At the roundtable and the seminar, representatives from network companies, relevant government organs, and research institutions gave speeches and carried out discussions on various issues relating to the relevant practices of different enterprises and the rules on network platforms.