The specifics of the activities of servicemen of the Special Operations Forces of the Armed Forces of Ukraine determine the need to develop resistance to frustration. The spy's reaction to this psychological state depends on the level of frustrating tolerance, the development of which depends on individual psychological personality traits, which create resistance to frustrators and make it easier to adapt to adverse combat conditions, training and work experience. The negative impact and destructive nature of frustration on the effectiveness of the tasks assigned to the personnel of special intelligence units of the Special Operations Forces require a study of the nature of frustration.Purpose. Retrospective analysis of the process of formation of the theory of frustration in the context of different psychological directions and schools, consideration of different approaches to the interpretation of the phenomenon of frustration and the formation of frustration tolerance. Methods.The theoretical methods of research were used to solve the problems set in the work: analysis of scientific sources on the problem of research, synthesis, comparison, generalization.Originality. Analytics, the approach to representing the interface in theories and the practicality of psychological thought, provide an opportunity to explore the nature of the emerging phenomenon in the context of a separate special repository of Special Forces.Conclusion:1. Comparative analysis of approaches to determining the phenomenon of frustration allows us to identify three main periods in the history of the study of this phenomenon in the theory and practice of psychological thought: theoretical, experimental or laboratory and modern. Despite a rather long period of research into this phenomenon, its interpretation and psychological content remain controversial.2. In further research, we consider it appropriate to consider frustration as a mental state of personality, which is expressed in the characteristics of experiences and behavior and which is caused by objectively insurmountable (or perceived subjectively) difficulties on the way to achieving the goal or to problem solving.3. A wide range of tasks defined by the SSPO of the Law of Ukraine of July 7, 2016 № 1437-VIII “On Special Operations Forces of the Armed Forces of Ukraine” on the one hand, and the specifics of performing tasks in small groups, in a constant hostile environment , in isolation from the main forces on the other hand, requires finding ways to develop frustrating tolerance at the stage of preparation for the assigned tasks.We see prospects for further research in the study of the psychological nature, content and structure of the phenomenon of frustration