Deputy chief engineer and deputy director of long-distance trunk line survey and design department of design institute of Ministry of Posts and Telecommunications.
1974 participated in the survey and design of Beijing-Shanghai Zhongkang coaxial cable carrier project, and served as the single project leader.
1975 participated in the survey and design of Beijing-Guangzhou coaxial cable carrier project, and won the third prize of national scientific and technological progress as the sub-project leader.
1985 participated in the survey and design of optical cable digital transmission project from Han to Chongqing, and served as the general manager of the project.
1986 was rated as an advanced worker in Henan survey and design industry by Henan survey and design association.