| 2010— | Permanent Representative, United Nations USA, New York, New York | |
| 2010— | Plenipotentiary Ambassador, Permanent Mission of the PRC to the United Nations USA, New York, New York | |
| 2006—2010 | Plenipotentiary Ambassador, Permanent Mission of the PRC to the United Nations, Geneva Office Switzerland, Geneva | |
| 2006—2010 | Permanent Representative, United Nations, Geneva Office Switzerland, Geneva | |
| 2005—2006 | Plenipotentiary Ambassador, Chinese Embassy Zambia, Lusaka | |
| 1998—2005 | Director, Ministry of Foreign Affairs, International Organizations and Conferences Department | |
| 1998—2005 | Senior Official, Asia-Pacific Economic Cooperation (APEC) | |
| 1997—1998 | Deputy Director, Ministry of Foreign Affairs, International Organizations and Conferences Department | |
| 1995—1997 | Counselor, Ministry of Foreign Affairs, International Organizations and Conferences Department | |
| 1992—1995 | Division Director, Ministry of Foreign Affairs, International Organizations and Conferences Department |