From March 2005 to July 2007, he was the director, professor, master tutor and doctoral tutor of Sun Yat-sen University Library, director of Institute of Library Science and Information Science, and director of Institute of Modern Educational Technology.
From May 2003 to February 2005, he was a professor, tutor for master students and doctoral students (2004. 10~), director of the library of School of Information Science and Technology of Sun Yat-sen University, director of the Information and Network Center (Modern Educational Technology Center), director of the Institute of Library and Information Science and director of the Institute of Modern Educational Technology.
200 1. 10 ~ 2003.5 Professor, Information Management Department, School of Information Science and Technology, Sun Yat-sen University, Director of Sun Yat-sen University Library, Dean of Network Education College, Director of Institute of Library and Information Science.
2001.10 ~ 2002.1Harvard College Library Harvard-Yanjing Library (Harvard-Yanjing Society of Harvard University), senior visiting scholar.
2000.9 ~ 200 1. 10 Department of Information Management, School of Information Science and Technology, Sun Yat-sen University, professor, master tutor, librarian of Sun Yat-sen University, dean of online education college.
1999.2 ~ 2000.9 Department of Information Management, School of Information Science and Technology, Sun Yat-sen University, professor, master tutor and librarian.
1998.6 ~ 1999.2 Department of Information Management, School of Information Science and Technology, Sun Yat-sen University, professor, vice president, master tutor, and librarian of Sun Yat-sen University.
1998.8 ~1999.1Graduate School of Library and Information Science (University of Illinois at Urbana-Champaign), senior visiting scholar.
1997.7 ~1998.10, Department of Information Management, School of Information Science and Technology, Sun Yat-sen University, professor, vice president, dean and tutor for master students.
1996.7 ~ 1997.7 Department of Information Management, Sun Yat-sen University, Professor, Dean, Master Supervisor.
1995.12 ~1996.6 Department of Information Management, Sun Yat-sen University, Professor, Vice President, Master Supervisor.
1994.7 ~1995.1/department of information management, Sun Yat-sen University, associate professor, vice president, tutor for master students.
1992.1~1994.7 Associate professor of Sun Yat-sen University, director of library science teaching and research section, tutor of master students.
1992.10 ~1993.10 visiting scholar, graduate school of library and information science, UCLA, USA.
1988.10 ~1992.10 Lecturer, Department of Library and Information Science, Sun Yat-sen University (199 1.7)
1986.7 ~ 1988.9 department of library science, sun yat-sen university, teaching assistant, student party branch secretary, graduate student secretary, scientific research secretary.