This article examines the legal status of federal territories as public law entities in the Russian Federation, which emerged as a result of the 2020 constitutional reform. This article discusses issues related to constitutional terminology, the constitutional-legal status, and legal regulation of federal territories, along with an analysis of the practice implementation of the constitutional provisions governing these territories. The specific features of existing federal territories in the Russian Federation and in foreign countries are also reviewed. The necessity for further development of the novelty introduced by the Constitution of the Russian Federation regarding federal territories is underscored, including a discussion on the unique tax regime applicable to these territories. The article employs several scientific methods, including the comparative-legal method and the formal legal method, with additional methods such as analysis and synthesis also utilized. Conclusion: Despite the short period between the establishment of the first federal territory and the development of its legal framework, several distinctive characteristics have also emerged in Russian legislation. An analysis of Russian constitutional law reveals key features in the exercise of public authority in this new public law entity. When comparing approaches to public authority in other countries, the models of India, Brazil, and Canada were chosen for comparison. It was found that Russia’s form of public authority within federal territories is unique and does not fully align with any of the models seen in these foreign states. However, Russian legislation currently lacks a comprehensive law that regulates federal territories as a whole. At present, the only federal territory established in the Russian Federation is the Sirius federal territory, and its legal status is governed by the federal law “On the Federal Territory ‘Sirius’”. This highlights the need for further development of a broader normative framework that regulates the status of the federal territory. Such a framework would not only solidify the legal status of the Sirius federal territory but also provide for future federal territories yet to be formed