(Purpose) The purpose of this study is to examine the immigration history and characteristics of immigration and multicultural policies of the United States as a representative immigration country and to provide useful information and resources that can be used in Korean society to derive practical implications for improving immigration and multicultural policies. (Research methods) This study examined the implementation and management systems of U.S. immigration policy using literature research methods and analyzed those focusing on employment, education, and family welfare policies. (Findings) The United States immigration policy prioritizes national interests and security and flexibly adjusts the inflow and outflow of immigrants according to economic conditions, labor supply and demand, and circumstances of the times. In particular, immigration has become a very important issue amid demographic changes in which white immigrants, the mainstream group in the United States, are decreasing and aging, and immigrants of color are increasing. There are various immigration and multicultural policies to support employment and employment opportunities for immigrants living through education. The immigrant inflow and stay policies of the U.S. change along with the change of the head of administration. Simple visas are provided to immigrants with a clear purpose of entry, and permanent visas are provided to family members and professional groups. Recently, the Biden administration is moving toward reforming the immigration system and immigration and multicultural policies that reflect American values, open the door to immigration, and evaluate and support immigrants based on national economic development and contribution. (Conclusion and recommendations) Korea also needs to improve its immigration policy more systematically due to population decline. Our government must accept immigrants in specialized fields who can contribute to Korea's economic development and revitalization, and improve the visa system so that they can settle in the local community. Immigration and multicultural policies develop social services and programs in a virtuous cycle linked to the central, local, and regional areas in the fields of employment, education, and welfare, based on the values of protecting immigrants' human rights and pursuing equality. Through this, the Korean government can provide practical support for the settlement of immigrants. There is a need to deeply consider Korea's population and industrial development issues and revise immigration laws and systems so that immigrants and their children can settle down as equal members of society and contribute to social integration.