Ritual is an indispensable part of human being’s life.It is presenting and symbolizing the relations of human and human,human and nature,human’s soul and body essentially,also has the function of harmonizing the three species relations.With the expansion of the productive forces and the change of society,the relations of human and human,human and nature,and human’s understanding about the relation of his own soul and body have changed.As a result,ritual’s construction of politic legitimacy function,social control function,cultural function as well as the economical function have changed.Therefore,we need pay attention to adapting the social productive forces level and agreeing with the social norms when using the functions of ritual.