In the context of intensification of globalisation processes, researchers’ attention is drawn to organised forms of crime, which are substantially more difficult to counteract if criminal offences have transnational features. Considering this, it is vital to investigate the content of international treaties aimed at combating transnational organised crime. Thus, the purpose of this study was to identify certain legal features of international cooperation in combating organised crime for further implementation of promising provisions in the work of law enforcement agencies in this area. The methodological framework of the study was formed by both general scientific and special methods of scientific cognition. The study also employed systemic, informational and functional approaches, as well as terminological, systemic-structural, formal-logical, and comparative legal methods of scientific cognition. The study confirmed that organised crime does not recognise the existing borders of states and constantly crosses them. At the same time, law enforcement agencies are quite limited in their actions by these borders, which substantially affects their ability to combat crime, especially organised crime. It was found that the legal framework for international cooperation in combating crime, including organised crime, is gradually being formed, but this process is influenced by the concept of primacy of national law over international law. The study proved that the current terminology of international treaties may not correspond to the terminology used in the national legislation of modern countries, but unification of legislation is reasonably necessary for effective crime prevention. The practical value of the findings obtained is that they can be used to further improve the legal framework for international cooperation