The purpose of this study is to develop and prove it's effects of the death education program, which help the aged prepare one's own death, through one of the interactive theory, the Walker's naturalistic model. The program developed through this model was put in operation upon the aged, who were actually using the welfare facilities. The possibility of the application of the program to the facilities and its effects were analyzed qualitatively, based on Parlett & Hamilton's illuminative model. The course of study of the program in the study for the aged, did not simply deliver information about their death. This study suggests to offer chances to organize their past through lectures and group activities, and to truly discover the significance of present life, the existence of death provides, while thinking over the point of death.