1971.11-1981.08.01Guangxi Dachang Mine Construction Company.

1981.08.1-1986.04.01Guangxi Dachang Public Security Department

1985.12.1-Up to now Nanning Public Security Bureau (director of political department, secretary of the Youth League Committee, deputy section chief of cadre training department of political department, deputy director of political department, deputy political commissar of criminal investigation detachment, deputy director of political department, deputy secretary of discipline inspection commission, director of political department, deputy secretary of party committee, deputy director of municipal public security bureau and secretary of party committee).