Aiming at understanding the paths that lead juveniles re-detained and exploring intervention plans for preventing the re-detained, this study verifies the gender-specific effects of interpersonal relationships, personality, and institutional misconduct in a juvenile detention center on re-detained through structural equations. To conduct the study, information of PAI-A, ostracism experiences, childhood abuse experiences, crimes and demographic statistics of 140 people(male adolescents: 70, female adolescents: 70) living in juveniles Academic was collected. To summarize the main findings, first, personality traits were classified by gender for juveniles in their first detainment and re-detained. In the case of male juveniles, the personality traits that predict re-detained were classified as externalizing(irritability and egocentricity) factors while the female juveniles' cases were classified as a mixture of internalization and externalizing(activity level, psychotic experiences, negative relationships). Second, as a result of looking into the effect of interpersonal relationships on personality traits and institutional misconduct in a juvenile detention center by gender, interpersonal relationships of male juveniles did not affect personality traits and institutional misconduct in a juvenile detention center, however, in case of female juveniles, interpersonal relationships had a significant effect on personality traits. Third, as a result of conducting a path analysis, the model suitability of male and female juveniles in detention centers was satisfactory, and it was confirmed that personality traits and institutional misconduct in a juvenile detention center were a significant pathway for re-detained to juvenile centers. However, as for the relational factor, only female juveniles showed a significant path. In particular, ostracism experiences had a significant effect on personality traits and indirect effect on re-detained to juvenile centers. These results confirmed that there were differences between genders in the case of re-detained to juvenile centers. And in particular, it showed that personality traits and institutional misconduct in a juvenile detention center are closely related factors to re-detained. Through this, I would like to emphasize the implications of providing necessary gender-specific treatment in juvenile centers and the importances of positive rehabilitation to the society for juveniles through restorative definition.