In the present study, gender body-image was defined as the cognition of masculinity or femininity of one's own body. The purpose of this study was to investigate the structure of gender body-image and its relationship with body-satisfaction and gender role orientation in adolescence, based on the above definition. 101 male and 123 female undergraduates completed the questionnaire. As a result, it was first found that most of the body regions were representable in both male masculinity and female femininity. Secondly, it was shown that gender body-image reflected physical sex differences and stereotypical of gender role. Thirdly, various sex differences obtained suggested that the structure of gender body-image was different between the two sexes. Fourth, it was found that gender body-image had a highly positive relationship with body-satisfaction. Finally, in females, gender body-image had a positive relationship with both masculine and feminine role orientation, but in males, had a positive relationship only with the masculine role orientation.