The article reveals the features of professional deformation of the personality of cadets in the process of their training at a military university. The main factors that have a significant impact on the professional deformation of cadets are: the characteristics of their self-actualization in their future profession, as well as the levels of professional burnout and satisfaction with military professional activities. It has been established that the professional deformation of cadets directly depends on their creativity, spontaneity, autosympathy, contact and flexibility in communication. The article proposes a program for the prevention of professional deformation of cadets.