This study was carried out to suggest a improvement plan for nuclear administration system in korea by comparing our country with other leading countries for nuclear power policy, current state and plans. It is suggested that NSSC, directly responsible to the prime minster should be upgraded to the president, the independence of NSSC will be maintained. A region safety committee directly responsible to the local government should be established, forge the dualistic regulation framework for mutual help and check, and consolidate the supervision of management for local nuclear power plant. NSSC is in charge of the engineered safety and protection of facilities, disaster protection etc., regional safety committee plays a special role in the safety measures for inhabitants and environmental monitoring