Abstract: The 3-D image analysis system of biomechanics is used to obtain the biomechanical parameters of the 445+8 high-difficulty movements by the athletes of different ranks. The paper analyzes the reasons and the differences of the success or failure in the technical movement, but also finds out the main reason of failure in order to improve difficulty movement of instruments' throwing and meeting, improving the athletes' performance and providing scientific bases.

Key words: competitive Wushu, throwing and meeting, 445+8, action features, biomechanics