The purpose of this study is to investigate the relationship between service quality and satisfaction in an elderly day care center within a hospital in southern Taiwan. Research data was collected from the users of the day care center from 2016 to 2017; service quality was divided into structural, process and outcome dimensions. The research results reveal that users have the highest degree of satisfaction with the outcome dimension and the lowest degree of satisfaction with the structural dimension. Regression analysis found that the most important factor affecting user satisfaction is outcome dimension, followed by process dimension, but structural dimension did not have any predictive effect on satisfaction. The study concludes with suggestions on how to improve service quality and satisfaction in elderly day care centers.