The purpose of this research was to present the results of group work with adolescent offenders who were fulfilling a socio-educational measure in the open environment of assisted freedom, using methods of psychodrama theory. This, whose founder was Jacob Levy Moreno, acts in the perspective of action and research through the acting technique, in which the subject trains the role, relives and recreates his dramas, as well as his internal and external conflicts. This technique enables the elaboration of new responses to old situations, as well as new situations, allowing the subject, through his spontaneity, to access his emotions, thoughts playing healthy roles. In this sense, group work provides the subject, through the other, to recognise and understand himself and the other, through the performance and inversion of roles, as part of a social atom providing the encounter and strengthening of creative expression and gradual transformation of the subject and the group.