Zhang Jun, male, Han nationality, is a native of Boxing County, Shandong province. He was born in 1956, joined the CPC in 1974, earned a law degree from Jilin University, and earned a master's degree in International Law from Hull University of Great Britain. Zhang is a member of the China Society of International Law and the All-China Youth Federation.
Zhang Jun enjoyed a successful career in the law, holding high posts in the Supreme People's Court of China, as well as two other district courts in Beijing. In 2003 he was elected vice-minister of the Ministry of Justice and in 2007 he became a member of the 17th CPC Central Commission for Discipline Inspection.