The question of this study is, ‘How did the ROK’s National Assembly and the Japanese National Diet discuss the repatriation of Koreans in Japan to the DPRK in early 1959?’ This paper analyzes the minutes from February to June 1959 of the ROK’s National Assembly and the Japanese National Diet to answer this. Comparing the ROK’s National Assembly and the Japanese National Diet’s parliamentary discussions on the repatriation of Koreans in Japan to the DPRK, the Japanese National Diet’s discussions were more specific and realistic than the ROK’s National Assembly’s discussions. Finally, Koreans in Japan were repatriated to the DPRK in December 1959.