The purpose of this study is to clarify the system of stone wall planning of Castles in Korea. This study is based on the methods of analysis from the Hwasung-Sungyuk-Eukwe (HSE). The HSE is the document of the construction of the Hwa castle (Suwon Castle), which was built in 1796, the second half of the chosun Dynasty (1392-1910) in Korea. The HSE offers many facts about the building system of the Chosun Dynasty, stone wall construction system; the supply system of the building materials, the building expenses and the organization of the workers. This is the first step for studying the system of Oriental Castle planning.