1985.07—— 1986.07, attending a lecture group in Qitaihe;
1986.07—— 1988.03, deputy-level cadre of the Secretariat of the General Office of the Ministry of Coal;
1988.03—— 1993.09, deputy director of the general office, chief clerk and deputy director of the secretariat of China Uni-President Coal Mine Corporation;
1993.09—— 1998.02, Deputy Director of the General Office of the Ministry of Coal and Director of the Secretariat (1996. 10 as Party Secretary of the Ministry);
1998.02—— 1998.07, Deputy Secretary of the Party Committee of the Institute of Coal Science and Technology Information;
1998.07 —— 2001.12, Deputy Director of Personnel Training Department of State Administration of Coal Industry and State Administration of Work Safety (State Administration of Coal Mine Safety) (deputy director level of national ministries);
2001.12 —— April 2005, Director of Talent Training Department of state administration of work safety (State Administration of Coal Mine Safety);
2005.04—20 10.09, Director of Personnel Training Department of state administration of work safety and Director (Director) of Personnel Department (National Work Safety Supervision Office);
2010.09—2014.11,deputy director of the state administration of coal mine safety (during this period: 20 1 1, served as the first deputy secretary of the directly under the authority Party Committee of the State Administration of Work Safety; From September 2065438 to September 2065438 to June 2004, he studied in the training class for young and middle-aged cadres of the Central Party School);
2014.11-member of the party group of the State Administration of Work Safety, deputy director and director of the State Administration of Coal Mine Safety.