In the technical actions for volleyball, spike is the most important technical means to win scores. Based on the previous studies, this study gives an analysis of spike skill, combined with the principles of biomechanics and kinematics. The results of the study show that the number of the optimum run-up steps is 3 and at the time the run-up velocity can reach 4 m sec-1; the reasonable technical action for the arm swing spike is to bend the elbow before swinging the arm in order to reduce the moment of inertia; through the study, this study finds out the key to spike skill and aims at finding a more scientific and rational training method for the athletes to improve spike skill.
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