Questions are considered on the problems of the modern system of preparation of young basketball-players. In an inspection girls took part in age of 13-15 years old, specialization basket-ball, in an amount 99 persons. For passing of further complex inspection 24 girls were selected (part on 2 groups). Directions of account of level of the biological ripening are rotined in the command of basketball-players of one passport age. Influence of the biological ripening of young basketball-players is set on the display of their special capacity and functional possibilities. Offered to recommendation on optimization of training process of young basketball-players.