1918-1919, Chen Daqi conducted a questionnaire survey on the moral consciousness of senior high school girls in Beijing, which is an earlier psychological research report in China and has pioneering significance for the investigation and research of psychology in China. 19 18, the Commercial Press published the Outline of Psychology. It is the first textbook of college psychology in China, which gives an accurate and comprehensive overview of the rich contents and latest achievements of western scientific psychology at that time. 192 1 In the autumn of, Chen Daqi went to Berlin University to study western philosophy, and returned to Peking University the following winter as the head of the philosophy department. 1927 president Peking University. At the beginning of 1929, in order to avoid the "back-to-school" student tide, Peking University was renamed as the National Peking University College of Peking University (still known as the National Peking University), with Chen Daqi as the dean. In August of the same year, Peking University College resumed its original name as National Peking University. 1929 In September, the National Government officially appointed Cai Yuanpei as the president of Peking University. Before taking office, Chen Daqi took over as president until Jiang Menglin took over as president of Peking University in February. 1930. Chen Daqi taught at Peking University 16 years, especially when the teachers and students of Peking University and the teachers and students of Peiping schools opposed the "reorganization movement", and presided over Peking University affairs, which made great contributions to cultivating talents, stabilizing teaching order and school development.