The purpose of this study was to investigate the effect of experience of physical activity on physical self-concept and psychological well-being of elementary school students. The subjects of this study consisted of 213(boys=110, girls=103) elementary school students who were fifth and sixth grades. The used instruments were the Kim(2001) for measuring Korean Physical Self-Description Questionnaire (PSDQ) and the Yang(1998) for measuring Psychological Well-Being. The data were analyzed by two way ANOVA and Multi-regression analysis as a statistical method. The main findings of this study were as follows. First, Boys thought more highly of appearance than girls, but girls thought more highly of flexibility than boys. Second, the group who had experience of physical activity thought more highly of sports competence, physical activity, self-esteem, flexibility, endurance than the group who didn't. Third, in the sub-scales of psychological well-being, there were no significant difference between boys and girls. Fourth, the group who had experience of physical activity thought more highly of happiness and absorption than the group who didn't. Fifth, in the sub-scales of psychological well-being, the feeling of flow was affected by appearance, self-esteem, endurance, muscle strength.
Sixth, in the sub-scales of psychological well-being, the feeling of happiness was affected by health and self-esteem