1985-1990 Attaché and Third Secretary, Department of International Organizations and Conferences, Ministry of Foreign Affairs (MFA)
1990-1993 Third Secretary and Second Secretary, Permanent Mission of the People's Republic of China to the United Nations
1993-2000 Second Secretary, Deputy Division Director, Division Director and Counselor, Department of International Organizations and Conferences, MFA
2000-2003 Deputy Director-General, Department of Arms Control, MFA
2003-2005 Minister Counselor, Permanent Mission of the People's Republic of China to the United Nations
2005-2007 Deputy Permanent Representative to the United Nations Office at Geneva and other International Organizations in Switzerland, and Ambassador Extraordinary and Plenipotentiary for Disarmament Affairs
2007-2011 Director-General, Department of Arms Control, MFA
2011-2016 Ambassador Extraordinary and Plenipotentiary, Permanent Representative of the People's Republic of China to the United Nations and other International Organizations in Vienna
2016- Ambassador Extraordinary and Plenipotentiary of the People's Republic of China to the Commonwealth of Australia
