1997-1999: Teaching Assistant, Faculty of Pharmacy, Xi’an Medical University, Xi’an, China.
July.2002-March.2003: Lecturer, College of Pharmacy, Faculty of Pharmacy, Xi’an Jiaotong University
May 2006-July 2007: Lecturer, Research & Engineering Center for Natural Medicine, Xi’an Jiaotong University, Xi’an, China.

Aug 2007-Dec 2010: Associate professor, Research & Engineering Center for Natural Medicine, Xi’an Jiaotong University, Xi’an, China.

Jan 2011-Present: Professor, School of Pharmacy, Xi’an Jiaotong University, Xi’an, China. 

July 2013-September 2018: Vice Dean, School of Pharmacy, Xi’an Jiaotong University, Xi’an, China.

October 2018-Present: Dean, School of Pharmacy, Xi’an Jiaotong University, Xi’an, China.