Philosophy research: Professor Peking University, doctoral supervisor of the Graduate School of Chinese Academy of Social Sciences, president of the Chinese Society of Philosophy History, convener of the Religious Group of China Social Science Foundation, and chairman of the China Atheism Society. He is also a researcher at the Institute of Philosophy of China Academy of Sciences, and trained the first batch of associate doctoral students for New China.

Buddhist Studies: From 65438 to 0964, he was responsible for establishing the first national religious research institution, the Institute of World Religions of China Academy of Sciences, as the director, and devoted himself to studying the Buddhist history of China with historical materialism. ? A large number of religious talents have been trained.

Library Construction: 1987-2005 Served as the director of the National Library, devoted to the cause of China Library.