In the history of tangsong ci development process, FengYanSi, were two very important authors not only in ci, ci and artistic style, and they have to view in the long period of a development model, model of two people had the word. Two people close, ci potential and show the relationship between two people, but the wind or the difference between words. FengYanSi were studied and the differences of the, we not only can explicitly create the word in the tang dynasty to the period of time according to the artistic characteristics, more importantly, we still can use specific research literature and literary style of the environment. Therefore, to research and development of ci, we cannot bypass FengYanSi and : FengYanSi, Were, Life feeling, Floating down