The Jessup International Law Moot Court Competition is sponsored by the International Law Students Association. With a history of more than 60 years since it was first held in 1959, the Jessup International Moot Court Competition is the largest and oldest professional international law moot court competition in the world and is known as the "Olympic Competition" in international law circles.

The 2019 Jessup delegation of CFAU was established in September 2019. Its members include the Department of International Law undergraduates Ye Ouyi, Lin Zeyu, Wang Ziyue, Yu Shiyu, and Li Yihui, off-court researchers Yan Shuaidong and Qin Ziqi, and CFAU teachers Dr. Song Yan and Dr. Ji Hua from the Department of International Law.. This year's competition covered the most cutting-edge issues of international law, including the recognition of international treaties, the development and use of artificial intelligence weapons, the competition and cooperation of jurisdiction under the WTO dispute settlement mechanism, tariffs and national security, and the immunity of state officials from the jurisdiction of the International Criminal Court. During the half-year preparation period, the team insisted on discussing, studying, and working on the issues of the competition every week. In January 2020, the team submitted a petition in English of more than 10,000 words on behalf of the plaintiff country and the defendant country and actively prepared for the trial competition.

Due to the COVID-19 epidemic, the trial competition was changed to a petition competition. This competition attracted 56 universities to participate, making it the largest competition to date. The CFAU delegation entered the semi-final after fierce competition and won the first prize with their rigorous and solid performance.