Korea is among the world`s most ethnically homogeneous nations. Those who do not share such features are often rejected by the Korean society or face discrimination. However, as the increase of foreign migrants in Korea transforms a single-ethnic homogenous Korean society into multiethnic and multicultural one, Korean government and the civil society pay close attention to multiculturalism as an alternative value to their policy and social movement. This study is a comparative analysis of the causality of acceptabilities toward members of multicultural society in Korea. Based on the social survey data, this study attempts to explore facts and features concerning about multicultural acceptabilities in Korea, and to explain the causal effect of social values(such as nationalism, multicultural attitudes, geographical belongings, multicultural directions, and demographic-sociological factors) on the attitudes of multicultural acceptabilities empirically.