The Korean Statistical Information Service (KOSIS), classifies and summarizes 1,062 cases that were found when searching [An Investigation on Multicultural Families in Korea] on the website. These years are 2009, 2012, and 2015. The suggestion of this study is as follows. First, it is a comparison between the migrant group and the permanent resident group of ‘children’ in the research data. Identifying the relative position of a married migrant family to a permanent resident can provide a very important clue. Also, for other date, comparison of the settled and migrant groups is as important as the ‘children’. Second, in the ‘medical care’ category, we need to add more depth than the surface content. For example, the inclusion of details about cancer diagnosis will determine the incidence of marriage migrants. Such efforts can provide more practical assistance to married migrant families. KOSIS is a very useful site that provides useful site that provides us with a lot of information. In the future, they should be able to use migrant group information more efficiently and be more helpful to them. This is the beginning of a sustainable society.