Abstract: Du Yu’s the Spring and Autumn Annals Variorum is the most important work in the Zuo Zhuan study history,which most popular edition is the one published by Shanghai Ancient Books Publishing House. But there are some mistakes in the proofreading of the new edition,which mainly contains three:the old mistakes of the old version;punctuation errors;some text in Jingdian Shiwen being mixed into the variorum.

Key words: Zuo Zhuan, Du Yu, the Spring and Autumn Annals Variorum, Proofreading