Abstract: Based on the main features of human motion,the present paper analyzed the complexity of movement structure features and the characteristics of and requirements for the completion of action skills, and further explored the morphological structure of human motion chain system. It is found that the kinematic chain contains three basic forms: joint chain, muscle chain and nerve chain. The three forms are independent while mutually influential. The wave-like conduction in motion is the embodiment of the function of kinematic chain. The functional movement is the result of the continuity and integrity of kinematic chain. The dynamic and multidimensional embodiment of kinematic chain is the essential feature of functional training. Therefore,in functional training practice, focus should be put on the integrity of and coordination between the various systems of kinematic chain and attention be paid to the core function of human body's core area, thus the weak links can be strengthened and eliminated, and isolated and partial training can be avoided.

Key words: human body, kinematic chain, functional training, movement