1983.9 —— 1987.7 majoring in soil agrochemistry, Gansu Agricultural University,1987.7 graduated and stayed on as a teacher (the only one in Grade 83).

1987.9- 1988.7 Teaching in Gulang No.3 Middle School, Gansu Province

1988.9- 1994.9 Associate Professor, Department of Soil Agricultural Chemistry, Gansu Agricultural University.

1994.9- 1996.7 Head teacher of land resource management, Department of Agricultural Applied Chemistry, Gansu Agricultural University.

1994. 10-2000.9 Lecturer, Department of Agricultural Applied Chemistry, Department of Resources and Environment, Gansu Agricultural University

2000. 10-20 10.9 Associate Professor, College of Resources and Environment, Gansu Agricultural University

200 1.9 State Key Laboratory of Arid Agriculture, Lanzhou University, studying for a doctorate.

2003. 10 Director, Environmental Assessment Center, College of Resources and Environment, Gansu Agricultural University.

Director, Institute of Soil and Fertilizer, Gansu Agricultural University

2004. 10 concurrently served as deputy secretary general of Gansu soil and fertilizer society.

2007. 1 Director, Self-study Office, College of Resources and Environment, Gansu Agricultural University

200 10. 10 Professor, College of Resources and Environment, Gansu Agricultural University

1010.5-1012.5 Gaotai county people's government is the deputy county magistrate (in charge of 7 departments).