This study focused on the evaluation of service level of Taekwondo operators according to the hands of customer satisfaction in sports field and grasping of original desire of customer who would be served. Also, it was provided specific and practicable information about the organizable and efficient operation of gym by searching the facts that effected on service satisfaction of Taekwondo gym It was selected for the convenience that 19 private gym which was operated in Osan and Ansan in Kyunggi-Do, and a group was middle school’s students and elementary school’s students in these gyms. Using the SPSS statistics Program version 10.0, data was suggested descriptive analysis about each cause, and multiple regression analysis was implemented for the major cause. In conclusion, we could see that in case of boy in elementary school, there was a significant explanation in facilities and coach, and about girl, there was a significant difference in facilities, coach and control of customer. In case of boy in middle school, there was a significant explanation in facilities and coach, and about girl, there was a significant difference in coach and control of customer