This study examined the existing policies of each country for nationalized citizens of Korea and current policies in Korea, introduced the present situation of the education program for nationalized citizens in Korea through focusing on the Korean language program in KIIP offered by The Ministry of Justice and pointed out results and problems of this program. This program is an important that prepared adjustment process that prepares foreign residents of Korea living as Korean who want to be to become nationalized as Korean citizens after they complete the KIIP within a certain period of time. However, in this kind of nationalized citizen program learners have different characteristics with the needs of the learners differ from the existing way of Korean education. They do not only need language education but they also need to receive education in a variety of areas to adjust to Korean society. To meet these diverse needs, KIIP(Korea Immigration and Integration Program) by The Ministry of Justice is making progress, dividing nationalized citizen learners into multi-cultural society specialist training courses for nationalized citizen learners and education programs for nationalized citizen learners. However, in reality it is hard to consider all cases because learners consist of different ages and jobs. As for education content, those learners are far behind with their understanding and expression of written language when compared to spoken language which they acquire from living in Korea. Thus, they need their own teaching method to compensate for this problem. Considering the learners’ special situations, the program requires strict qualifications for instructors but it doesn’t meet realistic conditions so program has a variety of difficulties. Finally, this study suggests to arrange a schedule to diversify the education diversification of education schedule and make it a permanent for learners. Therefore, it requires detailed curriculum development considering the needs of learners and program management.