Prison population has heavily increased therefore prison overcrowding is the serious issues and tasks to our correctional authorities. The goal of correction is re-socialization of inmate. Therefore all the conditions are fulfilled in order to achievement this goal of correction and correction development. But under the prison overcrowding the energy of correction administration is given rather than correctional treatment for inmates for the purpose of guaranteeing prison safety of public order. Prisons must be place where decency and human rights are guaranteed for inmates. Prison overcrowding is the infringement upon the fundamental rights of inmates. Therefore these prison overcrowding issues and tasks should be solved as soon as possible. The goal of this study was to research the best and most efficient and rational plan or countermeasures solving prison overcrowding problem in out country namely to the minimization the imprisonment. Finally the critical cause of the prison overcrowding can be found in overcountermeasure by all the criminal justice system and I emphasize that the issues and tasks of overcrowding of korea will be solved when all the criminal justice system namely police, a public prosecutor, judge correction staff treat offenders in view of criminal policy.

Institutional treatment is limited for lack of correctional effectiveness. Therefore nowadays, the trends of correction treatment head forward community treatment. In order to overcome the limits of institutional treatment, parole system was adopted as a criminal policy. This article studied the aspects of the theory as well as the reality of the current parole which has been administered. and then the result of this study is that the current parole system in korea has been carried out in a very passive fashion. generally the final goal of the correction treatment is rehabilitation. Parole is very useful for this goal. Therefore in this view, the goal of this article is to propose a plan for enlargement of parole system under the supervision of mandatory probation. In the long run the most important point is to realize that parole is not a favor given by the authorities, not a reduced term of imprisonment but rather a new type of correction treatment for rehabilitation converted from institutional treatment into community treatment.