Choi Jae-seo attempted to change korean literature`s direction, because he judged that the korean culture was split. He thought that the cause of this situation was the Western ideas as culturism, individualism, and rationalism, and suggested an alternative as nationalism armed with Japanese spirit. But he still used the culture as the concept of center in his theory. He defined culture as the best value, which needed to disseminate. Certainly, the best value meant nationalism armed with Japanese spirit. On this wise, culture as the best vale was the method of overcoming the spilt between the intellectual and the people, the family and the individual, the consciousness and unconsciousness. Meanwhile, the discourse of Choi Jae-seo`s kukminmunhak, in so far as he dined culture as value, was not perception but belief. His theory was ideology as a fantasy and illusion. After the 1943, He overtly emphasized the importance of increased production and martial spirit. This time, he thought the korean didn`t understand the nationalism armed with Japanese spirit, he thought that`s the biggest problem. He thought korean had the talent to be a excellent worker and soldier, but they did not have the nationalism armed with Japanese spirit. Therefore, he hoped that the korean intellectual enlightened the korean people. But They did not do that. In the end, Choi Jae-seo`s theory produced an effect that korean`s lack, this means, they didn`t understand the nationalism armed with Japanese spirit.