1946.04—— 1950.07, stationmaster of Guxiangtun Station of Harbin Railway Bureau, chief operator of Harbin Locomotive Depot, member of Xia Nan Cadre Brigade, and head of military transportation in Changsha, Hengyang and Guilin offices.

1950.07—— 1958.08, General Branch Secretary of Youth League Committee of Guilin District of Liuzhou Railway Bureau, Secretary of Youth Work Guidance Section of Youth Work Department of Political Department of Liuzhou Railway Bureau, and Deputy Secretary of Youth League Committee of Liuzhou Railway Bureau.

1958.08—— 1975.02, Deputy Secretary and Secretary of the Party Working Committee of Guilin District of Liuzhou Railway Bureau, Secretary of the Youth League Committee of Liuzhou Railway Bureau, Director of the Political Department Office of the Bureau, and Deputy Director of the Revolutionary Committee of Duyun Branch of Liuzhou Railway Bureau.

1975.02—— 1978.03, member of the Standing Committee of the Party Committee of Liuzhou Railway Bureau, deputy director of the Revolutionary Committee and deputy director of the Political Department.

1978.03—— 1983.04, Director of Liuzhou Railway Bureau and Deputy Secretary of the Party Committee.

1983.04—— 1990.05, Director and Party Secretary of Shanghai Railway Bureau (during this period:1988.01——1989.12, Economics of Beijing Economic Correspondence University.

1990.05—— 1992.09, Deputy Secretary of the Party Group, Director of the Political Department and Secretary of the Discipline Inspection Commission of the Ministry of Railways.

1992.09 ——1994.10, Minister of the Ministry of Railways, Secretary of the Party Group and Secretary of the Discipline Inspection Commission.

1994.10 ——1997.07, Minister of the Ministry of Railways and Party Secretary.

1997.07—— 1997.09, Minister of the Ministry of Railways and member of the Party Group.

1997.09—— 1998.03 deputy secretary of the central commission for discipline inspection (standing), minister of the Ministry of railways.

1998.03 —— 2002.11,Attorney General of the Supreme People's Procuratorate, Party Secretary, Member of Procuratorial Committee and Deputy Secretary of Central Commission for Discipline Inspection.

2002.11—— 2002.12, Procurator-General of the Supreme People's Procuratorate, Secretary of the Party Group and Member of the Procuratorial Committee.

2002. 12——2003.03, Attorney General of the Supreme People's Procuratorate, member of the Party Group and member of the Procuratorial Committee.