1995.10-1996.4 Visiting Scholar, Massachusetts General Hospital, Harvard University, USA
1996.4-2007.9- Director of Orthopaedics, Guangdong Provincial People's Hospital 1998. 12~ Now Chief Physician of Orthopaedics, Guangdong Provincial People's Hospital 201.1-Now Deputy Chief Physician of Orthopaedics, Guangdong Provincial People's Hospital.