The Fu in different dynasties has different characteristics and styles.The Fu in Song dynasty has various styles,including LiSao style,grand Han Style,rhythmical(symmetrical)style,and prose style.The prose fu is the newest one that is based on the achievements of ancient Fu.The prose Fu inherited the achievements of ancient Fu.At the same time,it made every effort to innovate.Comparing to the former works,the prose Fu inherited from the ancient Fu and brougt forth creatives.The scholars selected materials more widely,often used the prose form in writing,and composed it with comments.The language of prose Fu became plain from abstruse magnificently,and pursued philosophy and interest features.This article made generality comments on the prose Fu writing in northern Song,from its appearance,its stereotype to its development.This article also have made analysis on the writing style of every writer and the reason for the origination of prose Fu.It also put forward my own view on the location of the prose Fu on development history.