The article emphasizes the necessity of using confidentiality as generally recognized principle in administering juvenile cases in criminal proceeding. The analysis of international legal acts, particularly, United Nations Standard Minimum Rules for the Administration of Juvenile Justice (Beijing Rules), showed that the right of juvenile offenders to confidentiality should be observed at all stages of criminal proceedings. The author of the article showed that confidentiality is also expressed in the denial the third party’s access to the juvenile cases files and prohibition to publish the information about juvenile criminal cases in the media. The comparative analysis of the “Beijing Rules” and the Russian Federation Code of Criminal Procedure concerning juveniles made it possible to conclude that the right of juvenile to confidentiality is not protected by the Russian law. It is assumed that the confidentiality in juvenile cases legislated, the legal defense of the juvenile rights in legal proceeding could increase.