|For Japanese Christian religion, it is 1549 that Rome Catholic gets transmitted by Francisco de Xavier. Protestant was passed 120 since the United States begins Japanese missionary work from 1889, but Christian religion is decreasing generally. Purpose of this study examines Japanese Christian history and the spiritual world and is that diagnose. Therefore, this study modern relations between Korea and Japan Christian as a means for to arrange relevant research become. Early foreign missionaries are concerned in education and social welfare and contributed greatly in Japanese modernization in Japan. Subject of missionary work were leading foreign missionaries, but began to change by Japanese gradually. Prohibition is defrosted if summarize Japanese Christian history simply to postwar in 1945 after Meijii era and it was time that missionary work is lively. Confirmed that principle of Protestant differs with a Symbol Emperor System and is put under Japanese government`s strict watch and regimentation. Originally, Christian religion is transcended country and nation, but there was side that is embodied to effect of nationalism in Japan and grasps that affected to Christian`s decrease. Deeper discussion and study will have to be continued hereafter.