The purpose of this study was to investigate that the way of practice which secondary task is suggested in dance motor skill effect on decline in movement capability caused by failed to control of concentration in performance. Subjects were composed of 14 female college students in total majoring in Korean dance, which were distributed to either present-the main subject group or present-the main subject and the secondary-tasks group. Movement tasks included 10 movements of "Hwimon" rhythm and "Dasrum "rhythm in parts out of Seoljanggu for Korean dance. 5 experts carried out evaluation according to proposed evaluation standards. Evaluation data was analyzed by employing SPSS Ver.18.0 program. As a result, it looks a significant difference statistically that the learning effect of the group to which secondary task was offered is better than the group to which the primary task was offered in the achievement scores and similar performance situation, and for the average of achievement scores among each group, the group to which secondary task was offered had relatively higher scores than the group to which the primary task was offered.