Textual criticism is the important contents and the main form of the theory of Fu.In the periods of Emperors Kangxi and Yongzheng

the theory of Fu showed attention to the tendency of poem Fu because of the emperor’s advocating.At the same time since the identities of creation body and inheriting Fu’s theory of the Yuan and Ming dynasties

it was as well as shown the trend of emphasis on the feeling and strength

and combining prose Fu and poem Fu

all these is given a very clear expression in Fu’s selections.