The study aims at understanding variation and relevance between satisfaction and complaint behaviors towards customer service quality of gym club consumers in Taipei municipality. The study objects are 625 members randomly samples from 3 branches of GYMLUX in Taipei municipality. After collected data are processed by item analysis, factor analysis, relevance analysis, one-way ANOVA, regression analysis, the results are as following: 1. The satisfactory variation of consumers among individual quality factors: There are obvious satisfactory variations on member rights, enterprise image, customer service, and environment and facility factors for members in different branches. There are obvious satisfactory variations on enterprise image and customer service factors for members in different genders. There are obvious satisfactory variations on member rights and customer service factors for members in different ages. There are obvious satisfactory variations on enterprise image and customer service factors for members in different educations. There are obvious satisfactory variations on member rights, enterprise image, and environment and facility factors for members in different average monthly incomes. 2. The variations of customers' complaint behaviors: There are obvious variations in active complaint and passive tolerance factors for customers in different branches, but not in different genders, ages, educations, and average monthly incomes. 3. The relationship between customers' expectancy towards customer service, perception satisfaction and complaint behaviors favors stepwise multiple regression analysis: The higher the customers' expectancy towards environment and facility factor, the more frequent they complain; but the higher the customers' perception satisfaction towards member rights and enterprise images factors, the less frequent they complain.