The purpose of this study is to examine the job satisfaction of private correctional officers who are engaged in special work conditions different from other civil servants while working for convicts' correction and rehabilitation, and to provide political suggestions for the improvement of job satisfaction.For this study, the survey was conducted on 104 Private correctional officers in active service at Somang Correctional Institutions. As analytical methods, this study performed a frequency analysis, Mann-whitney U test, Kruskal-wallis H test and Spearman Correlation by using SPSS program.The results of this study showed that job satisfaction of private correctional officers was high except role ambiguity. But, They were unsatisfactory in satisfaction of external rewards; salary, monetary/social rewards, promotion opportunity.In private prison, They were very satisfactory in interpersonal relations with superior, colleagues, inmates except supervisors of the Department of Justice. We compared with satisfaction in accordance with the position of correctional officers. Correctional officers who is upper than 7th grade was highly satisfactory and it was significant difference to awareness of job dangerousness among division of private prison. Also, the more correctional officer's age is old, the more job satisfaction is high but it was not significant correlation between age and work period. To increase job satisfaction, the first of all, we have to treat as equals in labor conditions of correctional officer. Second, we must provide opportunities of social rewards by implementing personnel affairs system. Third, We need to change supervisor system of Department of Justice for role reinforcement and autonomy of correctional officers. Finally, we should perform job stress management programs for diminishing job dangerousness of correctional officers.