The purpose of this study were to examine the difference emotion, ego strength social support, and school adjustment between the divorced-family adolescents and not the divorced-family adolescents. In addition, it was to examine an influence of emotion, ego strength, and social support on school adjustment of the divorced-family adolescents. The subjects were composed of each 209 middle and high school adolescents with parents who got divorce and with parents who did not get divorce. The results were as followings. First, two groups showed the significant differences in emotion, ego strength, and social support. That is, the divorced-family adolescents showed significantly lower positive emotion, ego strength, and social support than not the divorced-family adolescents. Furthermore, they had difficulties in school adjustment. Second. as for the influence on school adjustment, social support had the highest explanation power, and then emotion followed. But ego strength did not have signigicant explanation power. Finally, the implication, limitation, and suggestions of this study were discussed.