The world has rapidly become culturally diverse, and Korea has gradually grown into a multicultural society, mainly due to marriage immigrants and foreign laborers, whose number exceeds over one million nationally. Their adjustment and acculturation in Korea, however, dose'nt seem painless and untroubled, and public libraries are in duty to provide multicultural service for these population. Providing useful services on the homepage makes it possible for users to find the information they need without having to visit the actual library. A more detailed research will be conducted by examining the multicultural services provided by the public libraries in Australia, Canada, the United States, and Japan, the leading multicultural societies. The further examination will be conducted on these libraries in terms of four aspects, that is, information, literacy, education, and culture, as declared by Public Library Menifesto. In Korea, translation and interpretation services, homework help, child literacy are necessary services at the public library, Management of independent multicultural site, shared services between Regional Central Library and Community Public Library, cooperation with libraries, government and organization will be helpful to multicultural library services.