1998 Up to now, professor and doctoral supervisor of Peking University Law School, invited consultant of the Supreme People's Court, member of the Supreme People's Procuratorate Expert Advisory Committee.
He is currently the director of the Academic Committee of Peking University Law School, the director of Peking University Institute of Criminal Law Theory, the deputy director of the Academic Committee of Peking University Ministry of Social Sciences, the vice president of China Criminal Law Research Association, the vice president of China Criminology Research Association, the vice president of China Trial Theory Research Association, the vice president of China Prison Science Research Association, the member of the Social Science Committee of the Ministry of Education, and the expert of the subject evaluation group of the National Social Science Fund.