This study aimed to analyze the effects of child abuse and neglect on male·female high school students and the moderating roles of peer attachment and closeness to teachers in the process. By using the second to the seventh yearsʼ data of 4th grade elementary school student panel participating in the Korean Children & Youth Panel Survey(KCYPS), the study calculated descriptive statistics and performed hierarchical regressions. The main results of this study were as follows. First, for male high school students, as each level of child abuse, peer attachment, and closeness to teachers was higher, the level of ego-resilience was higher. However, as the level of child neglect was higher, the level of ego-resilience was lower. For female high school students, as the level of child neglect was higher, the level of ego-resilience was lower, while each level of peer attachment and closeness to teachers was higher, the level of ego-resilience was higher. In addition, for only male high school students, peer attachment moderated the effect of child abuse on ego-resilience. On the other hands, for both male and female high school students, as the level of child abuse and neglect were higher, the level of self-esteem was lower, while each level of peer attachment and closeness to teachers was higher, the level of self-esteem was higher. Moreover, for only female high school students, peer attachment moderated the effects of child abuse and neglect on self-esteem.