1989-1993, Attaché and Third Secretary of the Permanent Mission of China to the United Nations Office and other international organizations.
1993-1995, Third Secretary and Second Secretary of the International Department of the Ministry of Foreign Affairs.
1995-1997, Second Secretary, Permanent Mission of China to the United Nations Office and other Swiss international organizations.
1997-1999, Second Secretary, Deputy Director and Director of the Arms Control Department of the Ministry of Foreign Affairs.
1999 -2004, First Secretary and Counsellor, Permanent Mission of China to the United Nations.
From 2004 to 20 10, Counsellor and Deputy Director of the Arms Control Department of the Ministry of Foreign Affairs.
20 10 -20 1 1, Minister Counsellor, Permanent Mission of China to the United Nations Office at Geneva and other Swiss international organizations.
20 1 1 -20 14, Deputy Permanent Representative of China to the United Nations Office at Geneva and other Swiss international organizations, Ambassador Extraordinary and Plenipotentiary for Disarmament Affairs.
20 14 to 20 15, bureau-level cadres of the Ministry of Foreign Affairs.
20 15 -20 16, Coordinator of Network Affairs, Ministry of Foreign Affairs.
20 16 Up to now, Deputy Permanent Representative of China to the United Nations, Ambassador Extraordinary and Plenipotentiary.