First, it refers to Yue Qingping, a professor in the history department of Peking University, a member of the Standing Committee of the Party Committee of the United Front Work Department of the Central Committee, and the title of "Three Masters of Peking University". In Yue Qingping's lectures, he said many times that he never recognized students calling him "Peking University Sanjie", and he himself was just an ordinary teacher and an ordinary old man. He quite recognizes that his classmates call him "the third servant of Peking University", that is, he "never calls the roll, never delays work, and never sits." ?

Second, Zhang Ning, Wang Shaojie and Wiliam all graduated from Peking University. Because they participated in the program "This is Dunk", the fans called them the Three Masters of Peking University.