A nation's correction level develops in direct proportion to the nation's level. But the correctional principle does not suit our actuality. Since revival, our nation's correctional organization has been falling behind the other administrative organ's result of developmental reorganization. Nowadays, correction business is greatly increasing day by day and a second offense never decreased. Therefore correction administrative business' professional and effectual promotion needs increasingly. But now our nation's correction bureau is existing as a domestic shape of the ministry of justice which only is a assistance organ of the minister of justice. As a result, it is appeared that the difficulty of command and control in perfect order, the subordination of prosecutor, and correction civil servant's depressing the morale of the troops and so on. This study till now shows these theoretical problems at various literature but actually there was not smoothly allusion that how is the correction civil servant's thought who is charging with the correction business. Accordingly, I grasped the actual conditions for the development of correction administrative to correction civil servants who work at correction facility in the whole land's 46 sites and I understood what is necessary for this. As a result for the development of correction administrative, I knew that the modernization of correction facility, the independence of correction office, and the increment of correction facility are immediate. If the development of correction administrative is not, a criminal's social comeback is difficult. So the damage returns again a good general citizens. Consequently, now theoretically or actually the independence of correction service is not optional but indispensable. Any society, from the shady spot where has to advance for the first time we can say being advanced.