This study was to investigate the effect of floor bar exercise on working memory, emotional intelligence, and sociality of elementary school children( grades 1~2) for 12 weeks. Total subjects to analysis are 48 from experimental group 24 and control group 24. 2X2 factorial ANOVA design was applied to confirm the study hypothesis. The results that participating floor bar exercised in the floor bar exercise effects working memory ability, emotional intelligence, and sociality. In conclusion, Regularly exercise is important to promote children's proper growth of working memory, emotional intelligence, and sociality.