150 cadets ages 16 to 25years were under the obsrevation of adaptation of intravascular microcirculation component during the course of their military professional study. The research data proved that active erythrocyte aggregation, the size of thrombocyte aggregates and the speed of thrombocyte aggregation are higher in the first-, second- and third-year cadets than in senior students. These findings are to be used in the assessment ofcadets' adaptation to the military service and the prognosis of their professional capacity.