1986.06—— 1989.09 Chengdu Institute of Metrology and Testing; (During the period 1987.04- 1989.09, it was seconded to the Legal Metrology Department of Chengdu Bureau of Standards and Metrology)
1989.09—— 1992.05 Member of Legal Metrology Department of Chengdu Technical Supervision Bureau;
1992.05—— 1995.07 Deputy Director of Metrology Department of Chengdu Technical Supervision Bureau;
1995.07—— 1997.08 Chief of Metrology Department of Chengdu Technical Supervision Bureau;
1997.08—— 1999.03 Deputy Director of Supervision Office of Chengdu Technical Supervision Bureau;
1999.03——2004.05 Deputy Director of Metrology Department of Chengdu Bureau of Quality and Technical Supervision;
2004.05—2005.09 Director of Metrology Department of Chengdu Bureau of Quality and Technical Supervision;
2005.09—2007.06 Director of Supervision Department of Chengdu Bureau of Quality and Technical Supervision;
2007.06—2008.04 Director of Food Production Supervision Department of Chengdu Bureau of Quality and Technical Supervision;
April 2008 —— 20 12.09 Chief Engineer of Chengdu Bureau of Quality and Technical Supervision;
2012.09-member of the party group and chief engineer of Chengdu Bureau of Quality and Technical Supervision.