1978.11-1981.02 Technician, Scientific Research Institute, Bureau of Geology and Mineral Resources, Henan Province.
1981.02 ——1985.08 Inspector of Labor, Personnel, Safety and Health Department of Henan Bureau of Geology and Mineral Resources.
1985.08 ——1989.03 Deputy Director of Labor, Personnel, Safety and Health Department of Henan Bureau of Geology and Mineral Resources.
1989.03 ——1991.07 Deputy Director of Personnel and Labor Department of Henan Provincial Department of Geology and Mineral Resources (during which:1989.09-10.09 studied in the political management major of Party School of Henan Provincial Committee of the Communist Party of China; 1991.04-1991.06 studied in the philosophy training class for departmental cadres in provincial party schools)
1991.07—1996.03 Director, Personnel and Labor Department, Department of Geology and Mineral Resources, Henan Province.
1996.03 ——1998.04 Director of Personnel and Labor Department of Henan Provincial Department of Geology and Mineral Resources and Deputy Secretary of Party Committee of directly under the authority.
1998.04—2000.08 Deputy Head of Discipline Inspection Team and Director of Supervision Office of Henan Provincial Department of Geology and Mineral Resources
2000.08—2004.07 Director of Mineral Development Management Department of Henan Provincial Department of Land and Resources
2004.07—2004.08 Member of the Party Group of Henan Provincial Department of Land and Resources
2004.08—— Deputy Director of Henan Provincial Department of Land and Resources, member of the Party Group