Yang Bojun's (1909-1992)Commentary on the Annals of the Spring and Autumn Periods with Zuoqiu Ming's Exegesis (Chunqiu Zuozhuan zhu 春秋左傳注) has been regarded as an important commentary on the Zuozhuan since its publication in the late 20th century. Making use of relevant scholarship, Yang provides comprehensive and thorough annotations on the Zuozhuan. However, with the discovery of excavated texts in the last few decades, some of the commentaries by Yang need rectification and supplementation. The present article aims to re-examine selected commentaries by Yang in his Chunqiu Zuozhuan zhu in light of evidence from a collection of excavated bamboo slips dated from the Warring States period, which is preserved in Shanghai Museum and the images of which were published in nine volumes from 2001 to 2012. Through a comparative study of the text of the Zuozhuan and relevant Chu bamboo slips, the author of this article discusses ten selected parts of Yang's commentary.