1987.11991.07 cadre of Jilin Provincial Administration College;
1991.07-1992.10 employees of the foreign trade and economic cooperation department of Huizhou Electronic Communication Industry Corporation (TCL Group);
1992.10-1993.10 Huizhou Daya bay development zone industrial office cadres;
1993. 10-2000.02 deputy director and director of the management office of overseas institutions in Daya bay development zone, Huizhou city (during this period: 1995.09- 1998.07 graduated from Guangdong Academy of Social Sciences with a major in political economy).