Bachelor with honors, University Singapore, 1970. Bachelor of Business Administration, University Singapore, 1977. Master of Science, University London, 1979.
Teacher Ministry of Education, 1964-1967. With administrative service Minister Labor, 1970-1981. Administrative officer Minister Defense.
Personnel man Hewlett Packard Singapore, 1981-1985. Member Parliament, Singapore, since 1984. Minister state home affairs, communications and information, and community development Government of Singapore, 1985, acting minister for community development, minister of state communications and information, 1986, 2d minister for foreign affairs, 1987.
Leader House of Parliament, since 1987. Minister community development Government of Singapore, 1988-1991, minister foreign affairs, 1991-1993. Deputy Chairman People's Association, since 1992.
Minister home affairs Government of Singapore, since 1994, Deputy Prime Minister, since 2005. Advisory National Transport Workers' Union, since 1985. Member People's Action Party's Central Executive Committee, since 1987, 2nd assistant secretary-general, 1992—2004, 1st assistant secretary-general, since 2004.
Chairman Chinese Development Assistant Council, 1992—2004. Member London Business School's Global Advisory Board, since 1999. Co-chairman Singapore-China Joint Council for Bilateral Cooperation, Suzhou Industrial Park Joint Steering Committee, Qatar-Singapore High Level Joint Committee.
Deputy chairman The People's Associate.
Member of People's Action Party's Central Executive Committee.
Married Lee Hong Geok. Two children.