1953- 1954 Grade one of Beijing Forestry College.
1954- 1955 German at the University of Leipzig, Germany.
1956- 1962 studied at Dresden university of technology in Germany and obtained a master's degree in chemistry.
1962 Institute of Forest Products Chemical Industry, Chinese Academy of Forestry.
1978 promoted to associate researcher.
1979- 1983 as deputy director.
1984- 1990 as the director.
1987 promoted researcher.
1995 consultant of international journal of cellulose chemistry and technology.
1998 American Biography Institute (ABI) awarded "1998 Celebrity".