Advanced level. According to Peking University official website, Peking University Boya distinguished professor is an honorary professor in Peking University and an outstanding scholar recruited by Peking University for the whole world. Boya distinguished professor enjoys the same rank and treatment as other professors of Peking University, but Boya distinguished professor of Peking University is a scholar with outstanding achievements and international influence in his research field. Peking University Boya distinguished professor's selection criteria are very high, and it needs several rounds of rigorous evaluation and screening. The research results of Boya distinguished professor of Peking University need to have an important influence in the world, and also need to have excellent performance in teaching and cultivating students.