This paper discussed the academic achievements of "Maijue Kanwu Jijie" to identify the error of "MaiJue", refute the falseness of Seven-exterior Eight-interior Nine-dao on "Maijue", create pulse researching methods like differentiating, combining, doubling, relativing and classing. Proponents confirmed that fit four diagnostic, not constrained by pulse. There were both theory and discuss in the book, and the argument was practical, learn widely from others' strong points, and views quite much to be recommend it, leamers not only can enrich the knowle...