Even though South Korean criminal justice system felt the necessity of treatment and rehabilitation for the drug addicted inmates, South Korea has concentrated on the punishment of them while disregarding the treatment and rehabilitation. Therefore, drug addicted inmates go back to the prison without overcoming drug temptation. 「The policy for the rehabilitation of drug related offenders(2006. 5)」 which was released by the Korean Corrections Bureau of Ministry of Justice on May 2006 is an appropriate policy for the treatment and rehabilitation of drug addicted inmates. However, it is hard to achieve some practical results only if there is a lone effort by the department which is dealing with the drug addicted inmates. Now, there should be in-depth discussions among the drug offence related criminal justice system to achieve effective results. This study examines the current status of the management and treatment for the drug addicted inmates in the correctional facilities. Based on this examination, I would like to recommend some effective ways of management and treatment for the addicted inmates. Especially, this study will provide some additional considerations for the implementation of 「The policy for the rehabilitation of drug related offenders(2006. 5)」. This study presents following recommendations: First, drug addicted inmates should be classified and segregated from the stage of un-conviction to the release from prison. Second, there should be enough medical doctors and drug addiction professionals. We can use medical doctors who are majoring psychiatry instead of mandatory military service. For the drug addiction professionals, we can educate our drug related employees at the graduate programs in drug specialized universities. Third, there should be more programs and educations for the treatment and rehabilitation of drug addicted inmates. Fourth, through the periodical inspection of the inmates, the usage of drugs in the correctional facilities should be prevented. Fifth, we need to consider the concept of community correction for the drug addicted inmates. Therefore, we can build an intermediate prison for the addicted inmates or can give more parole opportunities. Also, by the alleviation of the closed treatments using the strict correctional and educational programs, we can use more open treatments.