Waist lined Coat with Pleats excavated from Byun-su(1447-1524) Tomb in Yangpyeong were very similar in size to the costume of Haeina Temple which is the oldest YosunChollik up to now YosunChollik was popularly worn in the Yuan Dynasty of China(원) and it is presumed to be flown into Korea in that period. In China, the coat with a straight collar was called ByeonseonOh , and one with a round collar was called ByeonseonOhja in the Yuan Dynasty. The excavated relics of Haeinsa Temple are almost same as ByeonseonOh. In the Myoung Dynasty(명), the coat with a straight collar was called YoseonOhja, and one with a round collar was called Round collar YoseonOhja . The Waist lined Coat with Pleats excavated in the Byunsu Tomb is same as YoseonOhja Attendants who is low in position and doctors used to wear the coat, which was spread to diverse classes by degrees. Later, even emperors and high ranking officials used to wear it as military uniforms. It was made of silk and summer cloth. As mentioned above, 1 examined its history carefully through Chinese documents and photographic materials on relics. In addition, with the authentic records of Korea and the excavated relics of the Byun-su Tomb, 1 analyzed its components. However, the analysis was very restricted because the relics to be compared with were few.