Diploma, Institute d'Etudes Politiques, Paris, 1968. Doctor d'Etat and Agregation de Droit Public, Faculte de Droit, Paris, 1974.
He was director of the Centre de Droit International (CEDIN) of the University between 1991 and 2001. He is the author of numerous books Pellet is a French expert in international law, a member and former president of the United Nations International Law Commission, and is or has been counsel for many governments, including the French government, in the area of public international law.
He has also been expert to the Badinter Arbitration Committee, as well as rapporteur of the French Committee Jurists on the Creation of an International Criminal Tribunal for Former Yugoslavia ("TRUCHE Commission"), that is at the origin of the French project of creation of the International Criminal Tribunal for the former Yugoslavia.
He has been agent or counsel and lawyer in more than 35 cases before the International Court of Justice and has participated in several international and transnational arbitrations (in particular in the area of investment). He is Chevalier of the Légion d"Honneur since 1998.
Pellet has a bachelor of laws (public law) (1968 – Faculty of Law and Economics, Paris), he has the diploma of the Institute of Political Studies, Paris (Sciences Po) (1968 – public service section). He has obtained a diploma of advanced studies in political science and a diploma of advanced studies in public law (1969 – Faculty of Law and Economics, Paris) as well as a State doctorate in public law (1974 – Panthéon-Assas University – Assas, Paris) and the "Agrégation" in public law and political science (1974).
He has been auditor at the Academy of International Law, The Hague (public international law courses, 1967, 1969 and 1971).
Counsel, advocate International Court Justice, The Hague, since 1982.
Married Sylvie Perdereau, 1974. Children: Sarah, Heloise, Benjamin, Renaud.