1+ 2 digit school year+department code +3 digits. According to the query of Peking University official website, the format of graduate student ID is 1+ 2-digit number of academic years +3 digits, and the format of undergraduate student ID is 0+ 2-digit number of academic years +3 digits. Peking University, located in Summer Palace Road, Haidian District, Beijing, was founded on 1898. It is a national key university under the jurisdiction of the Ministry of People's Education of China, ranking as "2 1 1 project", "985 project" and "double-class project".