From 2011 to 2012, Professor Liu Chuntian served as the host of the Renmin University of China expert opinion draft for the third revision of the Copyright Law.

Professor Liu Chuntian was once employed as a member of the drafting group and revision group of the Copyright Law of the People's Republic of China and the State, and participated in the legislative work of the law. During the drafting work, he insisted on using the ideas, concepts, basic principles and methods of civil law to govern the copyright law as a separate civil law, and advocated the establishment of a copyright normative system that is compatible with civil law and can be used at home and abroad; In terms of the design of different types of copyright relationships, such as professional works, collaborative works, and works entrusted to others to create, we actively promote the introduction of civil legal behavioral norms and encourage parties to establish, in accordance with the law, by agreement rather than by statute on the premise of autonomy of will. Various rights and obligations must be stipulated by law to avoid being down to the smallest detail. This will lay a good foundation for the future integration and systematization of copyright law and other civil laws. In the use of legal concepts, we advocate respecting facts, respecting historical traditions, respecting national legislative habits, respecting the understanding and acceptance ability of the public, making it popular and clear, and avoiding ambiguity and misunderstanding. In terms of the choice of copyright law and copyright law, based on the above principles, we advocate the use of the term "copyright law", which is accepted by legislation. In addition, he and some experts also strongly opposed the inclusion of criminal liability provisions for copyright infringement in the copyright law during legislation. As a result, the Copyright Law passed on September 7, 1990 deleted the criminal provisions in the draft, resulting in For more than three years, criminal penalties for serious copyright infringements could not be imposed until 1994 when the Standing Committee of the National People's Congress issued corresponding supplementary regulations. This also reflects the limitations of his understanding.

Professor Liu Chuntian was hired as a consultant to the Trade Secrets Law Drafting Group and the Trademark Law Revision Group, and participated in the revision of the Patent Law. Some of his suggestions were adopted by legislation. For example, the final decision-making power on whether to grant patent rights for utility model and design patent applications stipulated in the original Patent Law was changed from the Patent Reexamination Board to the People's Court; the mediation power of the patent management agency in patent disputes in the original Patent Law was changed to It is the patent management agency that has mediation functions in patent disputes.

He was entrusted by the former State Education Commission to establish the intellectual property law major in my country. In 1986, based on the suggestion of Bao Gexu, Director-General of the World Intellectual Property Organization, the former State Education Commission decided to start formal higher education in intellectual property law in my country, entrusting Renmin University of China to take the lead in establishing the intellectual property major, and began to recruit intellectual property degree students in 1987. , has been for 18 consecutive years. In addition, Professor Liu Chuntian, as the convener of the original catalog establishment group for law undergraduate majors in colleges and universities of the State Education Commission, participated in the formulation of the catalog.