2008— | Vice-Minister, Ministry of Science and Technology | |
2003—2008 | Vice-Chairman, People's Government Ningxia Hui Autonomous Region | |
1999—2008 | Member, People's Government CPC, Leading Party Group Ningxia Hui Autonomous Region | |
1999—2001 | Assistant of Chairman, People's Government Ningxia Hui Autonomous Region | |
1995—1999 | Vice-President, China Youth University for Political Sciences Beijing Municipality | |
1991—1995 | Student, State University of New York USA, New York | |
1990—1991 | Visiting Professor, State University of New York USA, New York | |
1987—1990 | Member, CYLC, Central Committee | |
1987—1990 | Associate Professor, Beijing University, School of Mathematical Sciences Beijing Municipality | |
1987—1990 | Member, Beijing University CPC, Party Committee Beijing Municipality |