Objective: to analyze the features of body composition and parameters of aerobic and anaerobic working capacity at speed-power physical exercises. Material and methods. We examined 15 male athletes at the age of 18-20 and 15 young men of the control group. The body composition was evaluated using the parameters of bioimpedance analyzer АВС-01 «Medass», and functional state parameters by the data of the computer program complex «D-test». Results . Higher parameters of muscular and active cellular mass and lower amount of fatty mass in athletes were associated with lower parameters of aerobic working capacity comparing with the control group. Conclusion . The features of body composition and functional state parameters at speed-power physical exercises have been defined.