65438+September 0980-65438+June 0987, studying for a master's degree in the Law Department of Jilin University;
June1987-June 1990 Served as a teaching assistant, lecturer and associate professor in the Law Department of Lanzhou University.
1998-May 2005 Deputy Director and Vice President of Law Department of Lanzhou University, distinguished professor.
From May 2005 to June 2009, he served as Dean and Professor of Law School of Lanzhou University.