Full Professor of Civil Law, School of Law, Tsinghua University (Beijing, 2005-present); Director of European and Comparative Law Center, Tsinghua University (2009-present); Vice-Chief-Editor of Tsinghua Law Journal (2010-present); Associate Member of International Academy of Comparative Law (2007-present); Specially Appointed Professor, the Law Institute, Chinese Academy of Social Sciences (CASS, 2005-present); Council Member, Civil Law Research Association of China Law Society (2004-present); Arbitrator of Beijing Arbitration Commission (2005-present). 

 Visiting Scholar at Max-Planck Institute for Comparative Private Law (Hamburg) from October 2006 to September 2007 (with a Scholarship of China Scholarship Council) and from June to September 2009 (with a Scholarship of Max Planck Society) HIF Research Fellow at the Faculty of Law, Hosei University (Tokyo, Japan) from October 2000 to September 2001 (with a Scholarship of Hosei International Foundation).

2001.1-2005.11 Associate Professor, Law School, Tsinghua University.
1999.9-2000.12, Associate Professor, Law Institute, Chinese Academy of Social Sciences (CASS, Beijing, China).
1997.7-1999.8, Research Assistant, Law Institute, CASS.

Doctor of Laws (Dr. jur), Graduate School, Chinese Academy of Social Sciences (CASS), 1997 Master of Laws (LL.M.), Jilin University, 1994 Bachelor of Laws (LL. B.), Jilin University, 1991

 Contract Law, Law of Obligations, General Theories of Civil Law, Comparative Law