This paper analyzes and compares the city plans of the last two capitals - Anhwakgoong and Jangancastle towns of Goguryeo in Pyongyang, based on feng shui, topography of geomantic principles. In doingso, various historical documents and archaeological data were reviewed and analyzed. Findings and results of this study are summarized as follows:During the 4th, 5th and 6th centuries, China and surrounding counturies were frequently and fiercelyfighting war against each other, interacting with each other and syncretizing,. Through this process, theywere constructing and reconstructing their international relationship, making and forming a new Asian worldorder system. In the process of the construction of the new Asian world order, Goguryeo was playing avery significant and powerful role continuously in the Northeast Asia. In the early year of the 5th century, Jangsoo King of the rich and powerful country of Goguryeo movedthe capital to Anhwakgoong castle town in Pyongyang, the capital of North Korea from Gooknae castletown in Jilin Province of China, for his territorial expansion to the south direction. He searched apropitious region for the new capital in accord with geomantic principes and finally choosed the area ofAnhwakgoong in the east Pyoungyang. He constructed the capital with a city plan coinciding with fengshui. For about one and half centuries after the movement of the capital, Goguryeo gained and enjoyedprosperity. In the 6th and 7th centuries, the royal authority of Goguryeo was weakend and a coalition governmentby nobles was emerged. In the end of 6th century, the coalition government moved the capital fromAnhwakgoong to Jangan castle area in the middle of Pyoungyang. However, this analysis based ongeomancy tells us that it should seem for the government to pay little attention to feng shui in location ofthe capital as well as in the city plan. It would seem that the city plan of the last capital out of accord withfeng shui was one of the main reasions for Goguryeo to fall to ruin. Feng shui significantly affecting cities'ups and downs, it can be concluded that city planners should consider and reflect feng shui in their cityplannig.