Abstract: The structure of the Fan Yao music,in fact,is the diversification of yin and yang in the "Book of Changes".Yin-yang diversification has a unified and antithesis aesthetic effect from the libretto to the music after they have the changes of location,resulting in a symmetrical,balanced and harmonious aesthetic effect.Theoretically,"Book of Changes" has revealed Yin and yang have a unified and antithesis aesthetic effect in the laws of nature,Fan Yao had extended the law to the music field,it had created a str...