The purpose of this study was to examine the effects of service quality on customers satisfaction and service loyalty in public sport centers. Subjects were 307 customers who have participated in public sport centers which are used the convenience sampling method. The questionnaire for this study were reorganized to this study "quesionnaire for the public sport facilities" developed by Huh(1997). also, customer satisfaction was measured by Oliver & Swan(1989), Service loyalty was measured by Kang et al., (2002). The data were analyzed by the simple regression analysis and multiple regression analysis using the SPSS 10.0. The results are as follow. First, Among the factors of service qualities in the public sport centers, main facilities, program, instructor, employee showed affirmative effect on customer satisfaction. Second, Among the factors of service qualities in the public sport centers, main facilities, program, instructor, showed affirmative effect on customer satisfaction. Third, customer satisfaction effect on service loyalty.