This paper aims to examine the significance of xenophobia and hate crimes in multicultural societies. It begins with outlining the general discussions about multiculturalism, xenophobia and hate crimes. It identifies hate crimes that related to xenophobia in multicultural society and introduces hate crime laws in Australia. While Australian multicultural policy has its roots in government responses to the post‐settlement issues facing migrants, through the 1980s and 1990s policy was articulated more broadly as an element of Australia's nation building narratives. Today all Australian States and Territories have active policies and programs dealing with multiculturalism. As other multicultural societies, Australia confronts with challenges in building a multicultural society. One of them is xenophobia and hate crimes related to race, ethnic, religions. A number of common law countries have introduced legislation designed to respond to the problem of prejudice-related crime, commonly referred to as hate crime law. Whilst the heavier penalties imposed by hate crime laws are designed to denounce, and thereby deter, prejudice-related violence, it is apparent that these laws are meant to do more than punish and deter. They aim to condemn, not just criminal conduct per se, but also racism, homophobia, religious intolerance and the like. In this way Australia seek to make a broad moral claim that prejudice is wrong and to thereby reinforce pro-social values of tolerance and respect for marginalized and disadvantaged groups. This paper argues that hate crime laws are necessary in order to prevent hate crimes related to multiculturalism and suggests that Australian hate crime laws can be implied to sustain multiculturalism in Korea