B.Soc of University of Hong Hong 1974
M.A. of York University, U.K. 1978
PhD of Hong Kong University 1990
Field Instructor , Lecturer and Assistant Professor Department of Social Work and Social Administration, of University of Hong Kong ,1978-2008
Honorary Assistant Professor of the Hong Kong University, 2008-2021
Guest lecturer of Education University of Hong Kong , 2008-2020
Legislative council member, 1991-1996, 1998 -2008
Member of the Hong Kong United Democrats, 1990-1994,
Member of the Democratic Party of Hong Kong, 1995-The present.