The articles in this booklet mainly come from the scripts of the five speakers in a seminar co-organized by Centre for Comparative and Public Law of the Faculty of Law of the University of Hong Kong and China Human Rights Lawyers Concern Group, on 9th June 2012, namely, “Land Expropriation: Rights Defense and Law”. The five speakers were from Hong Kong, Taiwan and Mainland China respectively. They introduced the current situation, policies and problems of land expropriation in their places, as well as examined the defense of rights to housing and strategies of development in detail. The introduction provided a comprehensive review on expropriation that meets international standard and the right to adequate housing.