198 1 year ~ 1988: undergraduate and master students majoring in aircraft design of Beihang university, with master's and doctor's degrees in 1988 and 1998 respectively.

1988 ~ 2000: Assistant Professor, Lecturer and Associate Professor, Institute of Aircraft Design, Beihang University.

2000 ~ 2004: Director, Professor, Institute of UAV Design, Beihang University.

2005-present: Professor of Aircraft Department, School of Aviation Science and Engineering, Beihang University.