Prof. Gu is the Chair in International Relations and Director of Center for Global Studies at the University of Bonn in Germany.
Until 2009 he was Chair of East Asian Politics and Director of the Institute of East Asian Politics of Bochum University in Germany. From 1991 to 1998, he served as Assistant Professor of Political Science at the University of Freiburg. After one year Acting Chair of East Asian and Pacific Studies at the University of Trier, he joined the Center for European Integration Studies of the University of Bonn in 1999, acting as Senior Research Fellow directing the "Europe-Asia Programme" until 2002.
He is also an honorary professor and the Dean of the Research School for International and Public Affairs of the Tongji University Shanghai. Professor Gu is member of the German Council on Foreign Relations, and member of the German Society for Political Science as well as Chairman of the Association of Chinese Professors in Germany. His research areas include Theory of International Relations, Chinese Foreign Policy and Security Issues in East Asia, Energy Security and Geopolitics, as well as History of Chinese Political Thinking. He is the author and editor of about hundred books and articles.