Purpose: The military aspects of the Imjin Invasion and the background of Japan s military and yusool estab-lishment in the late Joseon Dynasty were investigated, and a thorough investigation was conducted on Joseon yusool used in hand-to-hand combat as a martial art of the Joseon dynasty. Yusool and Japanese military tours in the late Joseon Dynasty, they investigated Joseon Yusool from the Joseon Training Institute, and in particular, reviewed and analyzed the meaning and value of Yusool from a modern military perspective after the Korean-Japanese Japanese Invasion. Its purpose is to present Yusool as a martial art. Method: This research method examines in-depth the meaning and value of Yusool viewed from the modern military side after the Japanese Invasion of Korea and Japan, and provides related historical papers, reports and books, ancient documents, and Internet materials to present the authenticity of Yusool as a martial art in the Joseon dynasty From a macro point of view, this was conducted as a specific research issue related to the begin-ning of Joseon judo and yusool and military martial arts from the military side of the middle Joseon period and the early period of the Korean Empire. Results: After the Imjin Invasion, Joseon Yusool could provide its value as a cultural heritage in terms of the historical significance of Yusool from the Korean-Japanese military perspective, modern Joseon training, and the form of yusool values in the military aspect. Conclusion: It was said that there was jujutsu in Joseon in 1880, and the representative figures were Jujutsu and Gyeongchuk, a military martial art from Chosun training centers such as Park Moo-gyeong, Im Eun-myeong, and Lee Gyu-wan. Lee Guk-do, the first instructor of the Shinheung Military Academy, taught close combat with Joseon jujutsu. This is because Jujutsu, viewed from the military perspective of Korea and Japan after the Imjin War, has a high value in the military aspect of the modern Joseon training course, and from the perspective of military martial arts. Joseon jujutsu could provide its value as a cultural heritage.
2. Research Method