The purpose of studying the experience of the resocialization of persons who have served a custodial sentence is to identify problems that exist in the organization and implementation of this work by institutions and bodies of the penal enforcement system, consider best practices and formulate conclusions and proposals. Currently, there is no any notion of resocialization in the penal enforcement legislation, however, in some normative legal acts, in particular, in the Federal Law №. 182 «On the basics of the crime prevention system in the Russian Federation» (23 June 2016), resocialization is understood as a set of socio-economic, pedagogical and legal measures carried out by subjects of crime prevention in accordance with their competence and persons involved in crime prevention in order to reintegrate into society persons who have served a criminal sentences in the form of imprisonment and (or) those who have been subjected to other criminal law measures. The importance of the process of resocialization of persons released from prison is inexorably emphasized by statistical figures. Thus, about 60 % of those, who have committed crimes, do it again, and one in three has already been punished. On January 1st, 2024, the Federal Law «On Probation in the Russian Federation» came into force, which specifies the resocialization, social adaptation and social rehabilitation of persons released from prison as the main directions of probation. Currently, the process of developing and adopting sublegislative acts is underway. However, the existing positive experience of some regions in organizing this work should be counted. In the article the author examines the practice of the Federal Penitentiary Service of Russia in the Kaliningrad region. The author concludes that it is necessary to analyze and generalize the practices of various regions and develop a unified approach to this area of activity of the penal enforcement system in order to streamline it.