The postwar poems of Park, Inn-hwan(1926-1956) represent the problem of war in the reflection of Heroism. To the Psychoanalysis theory of Freud, Heroism is the negative disposition that the war incur in the inside of human. Therefore, Heroism and the war need to be critically reflected. Park, Inn-hwan had recognized the problem of Heroism after he had suffered the 6.25 war and reflected the nature of the Desire. He had also realized that he had the disposition of Heroism in the period between 1945 and 1950. After 6.25 war, Park, Inn-hwan had tried to overcome the mental problem from Heroism and the Desire in the reflection of Heroism. Most of his poems after 6.25 war had the characteristic of the reflection of Heroism. Especially the dialectic of the book as symbol and the landscape as symbol is the important style of his poems. And his postwar poems also have the frame of reflection of the ideology. Therefore his postwar poems deserve to be remembered the classic of postwar poems.