1958-1964 researcher and research assistant, institute of electronics, Chinese academy of sciences.
1964-1984 assistant researcher and associate researcher of Institute of Acoustics, Chinese Academy of Sciences.
1985-1988, former Deputy Secretary-General of China Academy of Sciences.
1988-1993 used to be the secretary-general of China Academy of Sciences and the director of the Information Consulting Center of China Academy of Sciences.
1993- 1997 is the director of the Institute of Acoustics. 1997 retired.
1992 -2005 Chairman of Shenzhen Kejian Group of China Academy of Sciences and Chairman of China Kejian Co., Ltd. ..
He used to be the chief science and technology consultant of China Netcom Company, the senior consultant of the State Administration of Radio, Film and Television, and the senior consultant of the informationization of Shanghai and Shenzhen municipal governments.
He is currently a researcher at the Institute of Acoustics, Chinese Academy of Sciences and the chief scientist of Beijing Dongfang Netcom Technology Co., Ltd.