Given the growing significance of unmanned aerial vehicles in modern conflicts, the issue of legal regulation of their use under martial law is becoming increasingly relevant. The aim of this article was to identify the specific features of the administrative and legal approach to managing the radio frequency resource for unmanned aerial vehicles (UAVs) in the context of armed conflict and heightened threats of electronic warfare. To achieve this aim, methods of legal framework analysis, comparative legal approach, and systemic analysis of security challenges in frequency regulation were employed. The article provided a comprehensive study of the administrative and legal aspects of regulating the use of the radio frequency resource for UAVs under the legal regime of martial law in Ukraine. The author highlighted the strategic importance of unmanned platforms for ensuring national security and defence, and draws attention to the specific features of the legal status of UAVs in both military and civilian sectors. The study analysed the existing regulatory acts of Ukraine governing access to the radio frequency spectrum and identifies gaps that limit the effective deployment of drones in combat conditions. Particular attention was paid to the issue of protecting communication channels from enemy electronic warfare, the necessity of implementing cryptographic protection, and the creation of specialised military frequencies for UAVs. Based on an analysis of the practices of NATO, the European Union, and Israel, proposals were formulated to improve the Ukrainian model of administrative control over radio frequency use. The author emphasised the advisability of introducing licensing for civilian UAV operators in combat zones, strengthening coordination between military and civilian authorities in the field of frequency planning, and adapting international standards to the national legal framework. The article proposed a comprehensive approach to forming a frequency security strategy, taking into account the requirements of the digital transformation of the defence sector. The results of the study may be used for the further development of draft regulatory acts and in shaping national policy on UAV usage in the context of cyber and radio frequency threat environments