Purpose: The purpose of this study was to understanding Badminton athlete`s body self-concept; sport Involvement and athlete satisfaction survey. Methods: This study participants were High school and university of intercollegiate athletes with 300 Questionnaire, Recycle valid questionnaires 294, Recovery rate 98%, (M=165,56.1%;F=129,43.9%). Results: This study found (a) has body self-concept higher that good quality sport in Involvement and (b) has body self-concept quality also athlete`s satisfaction higher, (c) the sport involved model in the causal as intermediaries. The suggest that the athlete、coach and organization addition athlete`s body self-concept level be able to improve Sport Involvement and Satisfaction.