The formation of rumba playerÂs body weight and barycenter, and the relationship between the barycenter and shifting are the key technology for rumba technique. There has been some progress on the study of the weight shift technology in transport step forward and backward about rumba, but there are still some practical problems in application. In this paper, we conduct a study on rumba playerÂs barycenter Shifting technique with a method of human motion mechanics. We analysis the position changes when the barycenter shifts and the physical stability in the process of barycenter shifting. The study shows that the grasp of barycenter shifting has an absolute effect on rumba players and helps maintain dancemovements fluent and coherent. By analyzing and applying this technology, players canmake new breakthrough in training and stand out in the competition, thus has certain practical significance.