Abstract: Ben Shu Lun, written by Lai min of the Three Kingdoms period is one of the earliest Bashu Chronicles. However, due to the ancient age, the book has been lost. Yet it has important referential value for the study of the history of ancient Shu Kingdom. In this paper, looks into the author himself and the historical period in which the book was lost. Comparing the King of Shu Ji and other books, the paper concentrates on the changes in the description of the legend of ancient Shu and its characteristics.