Editorial committees of China Science, Science Bulletin, Mathematics Journal and Mathematics Yearbook.
Member of Morningside Mathematics Center of China Academy of Sciences and Academic Committee of Mathematics Research and Talent Training Base of Ministry of Education.
Member of the Teaching Reform and Textbook Group of Mathematics and Mechanics of the Ministry of Education.
Adjunct professor of mathematics department of Southeast University, South China Normal University, Hebei Normal University and Northwestern Polytechnical University.
Member of academic team of Institute of Mathematics, University of Hong Kong
Member of the judging committee of China Mathematics Award and China Mathematics Award.
2. Director of the State Key Laboratory of Information Security
Member of the National Scientific and Technological Works Award Evaluation Committee.