According to Rogers' theory, self-acceptance is a goal of psychotherapy, and the real-ideal discrepancy is acriterion of adaptation. Self-acceptance is to change one' s view-point toward himself, and it is considered to be regulated by a real-ideal discrepancy together with self-consciousness. The main purpose of this study is to clarify the relationship between three variables. The research was enforced by handing a questionnaire to junior high school and college students:(1) SD self-concept scale for two self-images:‘like-self’ and ‘real-self’;(2) self-consciousness scale; and (3) self-acceptance scale. As a result, the grade differences of the mechanism for the relationship between a discrepancy, self-consciousness (sc) and self-acceptance, was examined. Jonior high school students showed that a discrepancy and PubSC had a negative effect, while PriSC had a positive one, and that there was an interaction effect between PriSC and PubSC. But college students were little affected concerning self-acceptance, and little difference between PubSC' and PriSC's effect was seen. Such result of college students suggested that self-acceptance concerned the factor except in cognitive self-images and self-consciousness.