Abstract: Yi Lin is used to fortunetelling which comes from Yi Jing, so it became a book of shushu.But it quotes lots of classics and historical sources, so that it has higher literary value and fill a vacancy in poetry of the Han Dynasty. The process of excavating Yi Lin's literary value has through thousand years.The ancients and the modern scholars? made great contributions to Yi Lin's literary value.And then, Yi Lin's literary value is making way, Yi Lin's character has changed,and Yi Lin's study has entered a new field.