The article is devoted to the activities of the state security guard services of the Russian Federation in counteraction of terrorism. In particular, the main features and trends of modern terrorism are identified. The article analyzes the current legal acts in Russia that regulate activities of state security guard services, including their main tasks. The main legal definitions in the field of state security are studied. A retrospective analysis of the development of domestic special services in the field of state security was conducted. The main activities of the Federal security guard service of the Russian Federation in the fight against terrorism, as well as the powers in development and implementation of measures to prevent, detect and suppress terrorist activities, are considered. In particular, the complex of conservative, custodial, technical, operational, investigative and preventive activities, is carried out by the units of the Federal security guard service of the Russian Federation, on a permanent basis in the period of preparation and conduct of security measures in the places of permanent and temporary stay and sections of the route of state (movement) of the objects of state security to ensure the security of state security and counter the terrorist threat. On the basis of the analysis of the activities of state security services, options for increasing the efficiency of their work in the field of anti-terrorism are proposed in order to maximize the effectiveness of ensuring the security of state security objects.