In article studing results of psychofunctional parameters at cadets of military school and students of civil high school are presented. It is shown, that the cadets who have arrived on faculty of scouts (FS), had significantly higher parameters of social-psychological adaptation, motivation to domination, the internal control and aggressions in comparison with cadets of faculty of legal maintenance of national safety (FLMNS) and students of pedagogical university. At the same time at cadets of FLMNS it was less expressed the balance of nervous processes with prevalence of excitation, lower speed of attention switching and speed of senso-motor reactions that was caused by higher level of their personal and situational uneasiness. Necessity of pre-appeal training of pupils and complex studying of psycho-functional abilities of cadets of military school is proved. It will allow to predict efficiency of professional training of future military experts and successfully to prepare them for office-fighting activity in extreme conditions.