The purpose of this research is to examine how Taekwondo and Image training affects on cerebral concentration rhythm of the lower graders in elementary school. Three groups of lower grade kids in elementary school were selected as the subject of this study. One group was composed of 13 of lower graders in elementary school who never got Taekwondo training. The other two groups were the kids who started Taekwondo. Among them, 11 kids took only Taekwondo training and 13 got Taekwondo and image training program together. After 12-week workout of Taekwondo Poomsae and image training, their brain waves of each group were measured by cable brain wave measuring instrument. The values were analyzed properly for the objective of the research and then followed by repeated-measured ANOVA with statistical program, SPSS WIN(version 18.0). Statistical significance level was .05. The result is as follows. It is proved that there was the interactional effect(P＜.05) of concentration rhythm in the left and right parts of the occipital pole after the training. Post-hoc verification also revealed that improvement in the left and right sides of the frontopolar artery, and the left and right sides of the occipital pole were signicantly found in the Taekwondo and image training groups than the control group. With respect to left and right vitality rhythm had a significantly(p＜.05). After considering all the aspects, Significant difference of the left and right cerebral activation rhythm was measured in Taekwondo Poomsae and image training in the left and right sides of the frontal pole. It is concluded that the increase of the concentration rhythm of the frontal pole that is alpha wave can be the meaningful outcome for children’s improvement of their concentration. Performing Taekwondo Poomsae and image training led to higher concentration of the children in the surrounding emotional stability. Proven cerebral activation on the spot of the occipital lobe facilitated deeper concentration of the frontal lobe in kids’ mentally picturing process as well as their visual sense. As children were visualizing each step of Poomsae image plays a crucial roles like keeping their real eyes, they could recognize the experience of their activity even if they closed their eyes. The activation of the right celebrum with the effect of mental picturing Poomsae motions can be a substitute education for the one-sided unbalanced learning which is usually the left-brain oriented study by the emphasis on knowledge accumulation since their elementary school year. It can be considered influence on balanced development of both sides of the cerebrum in dynamic stage of the kids’ cerebral development.