Purpose : This study purposes to suggest some basic data for the efficiency of a hospital management by drawing out the efficient ways to manage manpower to professionalism of rehabilitation service. Methods : The study used the questionnaire written by respondents themselves, and conducted the regression analysis on the relationships among the job characteristics, the empowerment and organizational commitment. Rusults : Among job characteristics, the wage was the influential factor on the empowerment(psychological, structural), and the specialty physical therapist license was the factor affecting on the psychological empowerment. Among the psychological empowerment factors, the higher meaning of his/her existence, the lower self-decision level, the higher structural empowerment are, the higher organizational commitment was. Conclusion : There were not identified any significant job characteristics influencing on the organizational commitment. Among the structural empowerment factors, the apply of job performance was the largest factor affecting on the organizational commitment.