1972 10, worker of Meng Yao power plant in Pingdingshan city, Henan province;
1973 studied in the electrical engineering department of Wuhan Huazhong Institute of Technology in September;
1September 1976, returned to Meng Yao power plant as a technician after graduation;
1March, 979, worker of Beijing low-voltage electrical appliance factory;
1980 1 month, working as a technician in Fourth Ministry of machinery industry Sixth Research Institute;
1986, deputy chief engineer of Kunlun Electronic Printing Equipment Company, China Computer Development Company;
1September, 1988, served as deputy general manager and chief engineer of Poly Electronic Technology Company;
1992 1 month, as the chairman and chief engineer of integrated electronic technology company;
1August 1993 to present, he has been the chief engineer of Stone Group Corporation and Stone Li Fang.