孙星衍自年轻时即致力于研读《水经注》,一生不辍。他主要是一位文献学家而非地理学家,故所校《水经注》以文献搜集的丰富、经注校勘的精确、文字训释的突破见长,体现了考据学派的特点,一定程度地推动了《水经注》研究的进展。但他短于地理考证,因学识制约导致的不足,也限制了他在该领域的高度。孙校《水经注》未经刊刻,稿本今存国家图书馆,不外借。国图又藏有清刘履芬誊录本,藉之可窥孙校《水经注》的流传情况、孙校《水经注》之历程、所做工作、特色及成绩。 Sun Xing Yan since he was committed to studying “water by the note,” stop working. He is mainly a biographer rather than a geographer. Therefore, the enrichment of his collection of “Shuijing Jing” by the literature, his breakthrough in annotating colloquiums and explanations of texts, has shown the characteristics of his school of reference, to a certain extent To promote the “water Jing note” research progress. However, he is shorter than geographical research, due to lack of knowledge constraints, but also limits his height in the field. Sun School “water by the note,” Unpublished, manuscript now save the National Library, not to borrow. The national map also contains a copy of Qingliufenfen’s book, by which you can see the spread of Sun Jing’s “Shuijing Jing”, the course of Sun Jing’s “Shuijing Jing”, its work, characteristics and achievements.