The purposes of this study were to: 1) measure the levels of job satisfaction with five facets of a job: the work itself, promotion, pay, supervision and co-workers, 2) investigate the degree of job characteristics inventory which employees perceived, 3) investigate relationships between job characteristics and job satisfaction levels of the employees in hospital foodservice, 4) measure the levels of organizational commitment and investigate its relationships between job satisfaction and job characteristics, 5) investigate the relationships between job performance and job satisfaction, job characteristics of the employees in hospital foodservice. The questionnaire was developed based on modifying Job Descriptive Index developed by Smith, Kendall, Hulin and Job Characteristics Inventory developed by Sims, Szilagyi, Keller and Affective commitment Scale developed by Meyer and Allen. Subjects consisted of 76 employees in hospital foodservice. Data were analyzed for frequency, means, ANOVA, Duncan multiple range test, and pearson correlation using SAS PC Package. The results of this study were as follows. 1) Most of the respondents were 41 years up(39.5%) and married (92%). High school graduates were 59.2%. 10 years working experienced employees were 35%. 2) A majority of the respondents(44.7%) ranked work itself as the most important aspect. 3) They were the most satisfied with co-workers. 4) Satisfaction with work itself, wage, and supervision were found significantly related to age(p<0.05). 5) Task identify was the most prevalent job characteristics and then task identity. 6) Satisfaction with co-workers were found significantly related to job variety(p<0.05). Satisfaction with supervision and promotion were found significantly related to friendship(p<0.05). 7) Job satisfaction have not correlation with job performance. Satisfaction with supervision, co-workers were positively correlated with organizational commitment(p<0.01). 8) Job characteristics of dealing with others were positively correlated with job performance (p<0.05). Job characteristics of variety, autonomy, task identity were positively correlated with organizational commitment(p<0.05, p<0.01).