In Recent years, social justice has become an issue of great concern to all walks of life in China and provoked great disputes and debates in Chinese theoretical circles. Many philosophers, ethicists, political scientists, economists, sociologists, etc., are involved and many world-famous theorists are frequently recited, such as John Rawls, Robert Nozick, Alasdair Chalmers MacIntyre, Friedrich (August) von Hayek, Arthur Melvin Okun, and the recent Nobel Prize winner in economics Amartya Sen. Chinese history has rarely seen such an extensive discussion on social justice, which reflects the degree of concern over it in contemporary China. In this chapter, the author tries to analysis the concept of justice from the point view of philosophy, hoping to promote its in-depth discussion.