The purpose of this study is to examine the effects of peace education's learning contents on the image against atomic bomb. Participants (N=80; university students) were completed questionnaire: developed scale on the effects of peace education's learning contents on the image against atomic bomb. The findings were as following. Each peace education's learning contents gave different effects for each image against atomic bomb. We clarified how the each peace education's learning contents effect forming each image against atomic bomb. It was suggested that the needs of peace education practice is based educational effects. On the basis of the results of this study, we discussed the problems of the future of the peace education.