Children in Conflict with the Law are children who have commited criminal acts, while Antara House in Social Orphanage X is one of the social rehabilitation institutions that becomes a reference for Children in Conflict with the Law care during the legal process. Generally, Children in Conflict with the Law experiences stress due to their displacement of life to Antara House in Social Orphanage X which is bound by a number of rules and the uncertainty of their conditions after moving out from Antara House in Social Orphanage X. The aim of this study was to reduce the stress level of Children in Conflict with the Law in Antara House in Social Orphanage X by using stress management training. The subjects in this study were 19 Children in Conflict with the Law in Antara House in Social Orphanage X. Training is carried out by providing pre-tests, conducting training, providing post-tests and evaluating training. The pre-test and post-test in this study used a stress level scale. The results of this study were that there was a reduction in stress levels at 19 Children in Conflict with the Law in Antara House in Social Orphanage X. The analysis results from the Wilcoxon test showed that stress management training could significantly reduce stress on Children in Conflict with the Law in Antara House in Social Orphanage X (Z = -3,835; p <0.00). The training conducted for Children in Conflict with the Law in Antara House in Social Orphanage X tends to be effective for several reasons, such as giving them the opportunity to be involved in discussions, filling in worksheets, practicing deep breathing techniques, openness to tell stories after the training, correlateness of the training with the problems they face and training with other topics that are relevant and implemented on an ongoing basis.