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The effects of Jazz dance program makes lots of exercise effect within short time and helps us to have an enjoyable exercise with various movements according to the music for the physical power and self efficacy of elementary school students on this study. First, the Jazz dance program affected the physical strength of elementary school students. There are power, muscular endurance, cardio respiratory endurance and flexibility as subordinate primary factors of the physical strength. And the result of Jazz dance program execution is like this. The experiment group showed the similar difference in the comparison inside the group before and after the Jazz dance exercise experiment (p<.05). The experiment group showed the similar difference in the comparison inside the group before and after the muscular endurance exercise experiment (p<.01). The experiment group showed the similar difference in the comparison inside the group before and after the flexibility exercise experiment (p<.01). But the experiment group didn't show the similar difference in the comparison inside the group before and after the cardio respiratory endurance exercise experiment. Second, the Jazz dance program affected the elementary school students' self Efficacy. The experiment group showed the similar difference in the comparison inside the group before and after the physical self efficacy experiment (p<.05). The experiment group showed the similar difference in the comparison inside the group before and after the general self efficacy experiment (p<.01). The experiment group showed the a similar difference in the comparison inside the group before and after of the social self efficacy experiment (p<.01). These results indicate that the Jazz dance program developed in this study were effective in improving physical strength and self efficacy of the elementary school students. Therefore, the current study validates the need for the further development of the systematic Jazz dance program.