The purpose of this study is to find determinants for service mind and skills of hospital employees to seek ways to improve the service level of hospitals. The past studies focused on the perspectives of customers in finding the solutions for service improvement. However, the existing approach failed in delving into the whole picture of service system. The behind operation of service system(e.g., selection and training of employees, support system) needs to be examined to have a balanced solution of service improvement. The personal characteristics, organizational characteristics, and customer experience were considered as the independent variables in predicting service mind and skills. The data collected in this study was gathered through questionnaire survey with 291 employees in five hospitals - from Sept. 10 to Oct. 16 in 2004. The results are as follows. 1. The regression analysis showed that job satisfaction and service commitment of organization were statistically significant in predicting service mind and skills. 2. The hierarchical regression analysis showed that the effect of hospital type on service mind was explained by service commitment of organization.