The Study Of 《Er Ya Yi Shu》

《Er Ya》 is the oldest book of exegesis that written in Han Dynasty. 《Er Ya Zhu》, was written by Guo Pu, is the best and the oldest version now we can find. In Qing Dynasty, Hao Yi Xing writted《Er Ya Yi Shu》which is based on《Er Ya Zhu》, and it exceeds the other versions.This paper disscuss following four points:Fist is the writer and the background of the book . The writer of the book is Hao Yi Xing in Qing Dynasty. The book was finally finished owned to the particular background and the writer' s personal successive effort.Second is the content and the regulation of revise. The pattern of the《Er Ya》 conditioned the revise content of 《Er Ya Yi Sh》 . The book not covered 《Er Ya》 itself and other versions, but contained other related information that he referred in the book. Hao Yi Xing generalized some regulations of revise and supplied them to others.Third are exegesis methods which have been used in the book. Methods include analysis of the Character form, the word meaning and the word phonetic, moreover, 'it also include depiction of the size, the function, the habitat, the orientation and the colour of things and so on. All methods make the exegesis in here is trustworthy.Forth is the conclusion of the book. There are some contributions, but also some faults. So we should assess it objectively and justly.