In Korea, 54% of the total number of dams and reservoirs was constructed more than 60 years ago and thus, deterioration of the reservoir facilities, as well as an increase in unusual weather patterns over recent years, have been increasing the possibility of disaster. In this paper, problems in safety management of the facilities and the solutions were examined. For the safety management of the reservoirs for the disaster prevention, revolutionary techniques may have to be introduced and new ideas, such as idea show to select adequate reservoir emergent discharge system and expert conference, need to be continuously developed.