Most novel of Chosun set China as their space and main characters are Chinese. It was because China and Chosun belongs to same civilization. The space of Yuyiyangmunlok is also China, but this novel is unique in that Mt. Geumgang of Korea come into narrative. The geographical facts of this mountain are put into the text. Moreover, the contents from Mt. Geumgang are used for description of chinese place. In the narrative context, Mt. Geumgang is the space of immortality where the main character resided to overcome his calamity, but the image of immortality is in discord with the reality of Mt. Geumgang. So Mt. Geumgang as the real being formed the space of life where he had married and his son was born. This ambivalence of Mt. Geumgang as space is from the Mt. Geumgang that is the other country and in the same time also the our country. It tells us why the writer put Mt. Geumgang in the middle of space. He he did not know well about chinese geography but he knows Mt. Geumgang because it is the most famous mountain of Korea. The space structure which set China as the main place, was common in Korean classical novel. But This disturbed the reality and concreteness of the space. The writer tried to overcome the gap between ignorance and his desire for space-description. At this point, Mt. Geumgang in Yuyiyangmunlok has the important meaning in the history of novel.