He is also a research fellow with the Human Right and Humanitarian Law Research Center at the Peking University. Before joining the Peking University Law School, He was a post-doctoral researcher at the University of Helsinki from 2010-2013 and continues to serve as a docent in international law at the University of Helsinki as of March 2014. He worked as senior research fellow to the Academy of Finland research project “implementation of ILO core labor standards in China: legal architecture and cultural logic” (2012-2015). He works extensively on history of labor and social laws in Republican China, dynamics of ILO and China, and ILO core labor rights. His fields of interest include international law, international organizations, global governance, international and comparative labor law, and humanitarian law.