| 1999— | Chief Engineer, China Unicom | |
| 1999— | Vice-President, China Unicom | |
| 1995—1998 | Director-General, Ministry of Posts and Telecommunications, Bureau of Director Communications | |
| 1983—1995 | Deputy Director-General, Ministry of Posts and Telecommunications, Institute of Data | |
| 1968 | Graduate, Beijing University, Applied Physics Department Beijing Municipality |