Today we witness the big change of various realms internally and globally. The Republic of Korea have been exposed to the neoliberalistic flow after joining WTO. The Russia joined WTO recently. It might affect the economy of Russia and deepen its socio-economic problems like The Republic of Korea. The Republic Korea have been suffered from social unequality, downsizing of population etc. Both countries have the same problem such as immigration or migrant workers. The Russia have been experienced the immigration problem after the collapse of its former Soviet Union while the Republic of Korea have been experienced the immigration problem after 1990"s. The Republic of Korea and Russia have been adapted themselves to this new situation through multicultural policy and migrant services after 1990"s. Both countries have been suffering from the racial, social conflict between natives and foreigners. That suffering sometimes have been extended to mutual violence in both countries. This treatise aims to rethink about the multicultural policy and policy for migrant workers in both countries to import labour. I tried to propose an opinion that the policy for migrant workers is more important than the multicultural policy regardless of the success and failure of the multicultural policy because the former is fundamental to the possibility of the latter"s success. The failure of the multicultural policy means its model of integration. The multicultural policy has a weak point to contradict itself in that it is indifferent to immigrant workers outside the national state while it tries to insert foreigners into the national state realm. This contradiction stimulates racial, social conflict. This is a point that this treatise reached by the comparison between South Korea and Russia.