1975.04 Demobilization and Returning to Home Work
1975.09 Water Supply and Drainage Major of Lanzhou Railway Institute.
1978.08 cadres of Gansu provincial environmental protection bureau
1990.09 Director of Gansu Provincial Environmental Protection Bureau
1994.03 Head and Secretary General of the Preparatory Group of Gansu Environmental Protection Industry Association (deputy county level)
1997. 12 deputy director of pollution control department of Gansu provincial environmental protection bureau
200 1.06 Director, Pollution Control Division, Gansu Provincial Environmental Protection Bureau
20 10.02 Director of Planning and Finance Department of Gansu Provincial Environmental Protection Department
20 10. 10 director, environmental impact assessment division, Gansu provincial environmental protection department
20 12. 10 Deputy Inspector of Gansu Provincial Environmental Protection Department