The purpose of this study is to establish a policy of tolerance towards multicultural families, foreign emigrants, and North Korean defectors on Jeju Island. To analyze the problems of intolerance by interviewing them. To achieve this through objective, analyzed data of the reality on tolerance and intolerance and through organized discussions on multiculturalism and tolerance on Jeju Island. Through this study, the following implications can be made. Firstly, people on Jeju Island are fairly open and tolerant. Secondly, there is a correlation between fluency in Jeju dialect and the level of tolerance. Thirdly, it is important to overcome the cultural gap. Fourthly, there are several cases of intolerance when using transportation and shopping. Fifthly, there is a tendency of denigrating foreigners from poor developing countries. Sixthly, most people would like to recommend Jeju Island to friends and family members. Through this study, it can be concluded that understanding differences among members of multicultural society with ‘regards, supports, and aids for coexistence as equivalent members of Jeju society’ are necessary.