Pei Xuehai is a great linguist.His GuShuXuZiJiShi benefited the academic community,and his research on ancient books,phonetics,and ancient Chinese textbooks also had many positive connota-tions.Only the academic community knows very little.The paper categorizes his academic articles,es-says,poems,and works,in order to reveal the traces of his academic changes before and after,and pro-vide clues for Pei Xuehai's research.