1985-1989: undergraduate student, Law School, Chinese People's University of Public Security

1989-1994: lecturer, Police Academy of Harbin City, Heilongjiang Province;

1994-1997: practice lawyer;

1997-1999: Graduate School, Chinese People's University of Public Security；

1999-2002: Doctoral student, Law School, Peking University.

2002-now: research fellow, CASS Law Institute.