In today’s fierce tennis game, each stroke effect on win this point plays a vital role, the length ofthe shot routes is one of the important indicators to measure it. From a physical point of view it for analysis,that the length of the ball with the racket line ball rotation Angle, strength and has close relationship, In thetennis game, if according to the actual situation and reasonably using the elements to hitting ball, we not onlycan efficiently control rhythm and game, but also hitting effect will be more optimization, then the final vic-tory will naturally turn to us；From physical point of view， through deeply analysis of the principle about hit-ting tennis ball, we find out the hitting ball scientific basis and then improve the hitting technology movementstructure, it provide us a certain theoretical reference for our teaching and training about the tennis technol-ogy in future.