With the development of media convergence，on one hand，audiovisual media have welcomed the newest market and the best chance for business development；on the other hand，piracy in the environment of the internet is still crucial and hindering the sustainable development of the copyright industry. The utility of the newest technology，typically blockchain，has given the audiovisual industry a new opportunity for strengthening the copyright protection and expanding the market. How to grasp the chance to use blockchain in a good way is one of the most significant task for the future of the audiovisual media in China.