The purpose of this study is to identify how and job satisfaction and job training affect service quality and to offer strategic tools for enhancing competitiveness of the food service business industry. To fulfill this purpose, this study utilized a factor analysis, frequence test, a reliability analysis and a covariance structure analysis. The results of the analyses show that one dimension such as "job training" influenced service quality. This means that restaurants should put more focus on job training to improve service quality for customers.