The table tennis three treasure are variety of the combinatorial techniques;the all-round hitting point and inverse direction techniques,which play important role in the competition.

Based on analysis of ball passing techniques it is put forward that the hitting point should be attached importance in ball passing teaching.

The best batting way and the best "hiding point" were proposed to obtain the best shooting point of the soccer robot.

Discusion on relationship between player,ball and net in volleyball strokes;

On the effects of head and free arm in the stroke of tennis;