Abstract: The rapid improvement of weapons and military equipment of anti-aircraft missile forces, the complication of the tasks assigned to the calculations of modern anti-aircraft missile systems and the conditions for their implementation, necessitates taking into account the human factor and revising the requirements for operational personnel, due to the increased impact of the psychological component of their professional activities. This article actualizes the problem of psychological support for the reliability of the professional activities of operators of anti-aircraft missile systems. The main stages of a professional study of the professional activities of operators of anti-aircraft missile systems, carried out in order to improve the methods of their selection and professional training, are described. An expanded list of professionally important qualities formed as a result of the study, which the operator of an anti-aircraft missile system must have for successful activity, as well as a list of integral professionally important qualities, is presented. The results of the study can be used in the selection of methods for identifying and determining the level of development of integral professionally important qualities of operators of complex technical systems for military purposes at the stages of selection and training.