排球比赛每球得分制实施后,我国排球运动员发球攻击性明显减弱,且相对欧美强队存在较大差距。尤其在关键局的关键球,相持球和落后球时特别明显,其主要原因是运动员的心理因素:怕失误,怕承担风险。如何在不失误或少失误的前提下提高发球攻击性已成为我国排球队迫切要解决的问题 After the ball scoring system of volleyball matches is implemented, the volleyball athletes in our country have significantly reduced offensive aggressiveness, and there is a big gap between them. Especially in the key rounds of the key ball, phase ball and the ball backward especially obvious, the main reason is the athlete’s psychological factors: fear of failure, afraid to take risks. How to improve the aggressiveness of the serve without any mistakes or mistakes has become an urgent problem to be solved by the Chinese volleyball team