Social inequality refers to a situation in which individual groups in a society do not have equal social status, social class, and social circle. Areas of social inequality include the extent of property rights and access to education, health care, quality housing and other social goods and services. Apart from that it can also be seen in the quality of family and neighbourhood life, occupation, job satisfaction, and access to credit. If these economic divisions harden, they can lead to social divisions. The reasons for social inequality can vary, but are often broad and far reaching. Social inequalities exist between classes and countries. The results of such social inequalities can be seen around the globe in the history of all countries. With regard to globalization, deepening inequalities within and between different groups in society are associated with low levels of social cohesion. This paper is an analysis of the social inequality cognition among Korea, China and Japan. To do this, by using data set collected from 2009 ISSP(International Social Survey Programme) modules.