This study is about Jeongdaeupjimu from Jongmyoilmu which King Sejong the Great had made(1447) and King Sejo designated(1464). This study aims to prove Kimyong’s claim that Jeongdaeupjimu, which has been descended as a sword dance, possesses the expressive terms of swordsmanship in its predicates and movements, and thus contribute to the development of Korean swordsmanship culture. To achieve the study goals, the study has been divided into three steps. In , Kimyong’s papers were analyzed and in-depth interview was done to understand his claim about Jeongdaeupjimu. In , objectivity and validity was acquired by comparative analysis between results of Jeongdaeupjimu movements from , and literature on swordsmanship. In , final reliability was secured by verifying the results from and through relic analysis of swordsmanship and sword, and in-depth interview with three swordsmanship professionals. Through the above steps of the study procedure, following results have been acquired. The movements of Jeongdaeupjimu well possesses the principle of early Chosun Dynasty swordsmanship and the predicates in Jeongdaeupjimu have much scientific composition principle, having a unique Korean expression for movements. Therefore, the predicates in Jeongdaeupjimu can be used as the expressive terms of Korean swordmanship.