The purpose of this study was to investigate the difference of physical self concept and satisfaction of school life, and the effect of the degree of participation in middle school sports clubs on the physical self-concept of middle school students. The participants of the study were from ten middle schools which host various sports clubs under the guidance of the Busan Metropolitan City Office of Education. Test samples were extracted by using a purposed sampling method, and the Varimax method was conducted after gathering 347 data. In order to obtain reliability, Cronbach’s value was conducted using the variable’s consistency among the multi measurement. The results are as follows. First, physical self concept affected external appearance, flexibility, regular exercise, muscular strength and persistence after participating in sports clubs. According to a survey on physical self concept and satisfaction of school life, the students who participated in sports clubs had a positive relationship with the their teachers, as well as with their friends than those who did not. However, the physical environment or the school was not statistically correlated with the students\' satisfaction. Second, the degree of participation in sports clubs influenced the physical self concept, and the frequency of participation, time, and duration showed less importance than physical self concept. The degree of participation in sports had partial influence on appearance, flexibility, physical strength, but not on health, body fat and endurance.