顧炎武的《左傳杜解補正》是清代專門研究《左傳》的第一部專著，顧氏在前人的研究基礎上，掃除門戶之見，廣納各家研究成果，融匯漢宋之學，并參以己意，對《左傳》杜注有缺失者補之，有不當者正之，開清代樸學之風。但是對於顧炎武的研究，學界往往重點關注其在思想史上的創新和成就，而對于他在春秋學上的研究則關注頗少。《左傳杜解補正》對《左傳》研究和清代的學術研究都有着非常重要的地位和研究意義，顧炎武治《左傳》之方法對於清代學術的影響重大。所以從學術史的角度來看，顧炎武不僅在思想上領一代風騷，在學術史上、治學方法上也開一代之風氣。有鑒於此，本文將在前人研究的基礎上，對《左傳杜解補正》的版本源流、體例內容、顧氏的闡釋方法、治學方法及其對清學的影響等內容進行辨析和探討，力求對《左傳杜解補正》一書進行全面的分析和研究，同時對《左傳杜解補正》一書中的不足和顧氏在治學方法上的局限性，一并加以讨论。

A Revised Edition of Duyu's Annotations on the Zuo Zhuan , the first academic study on the Zuo Zhuan in the Qing dynasty, is written by Gu Yanwu. Based on a critical analysis on the previous researches and fruitful achievements concerning this subject, he has revised Du Yu's annotations and added new elements to make it an integrated whole, thus embarking on a new era of factualistic scholarship.However, while concentrations are put on his innovation and achievements in philosophy, little energy is spent on researches about his writing classic study and philology. In fact,this piece of work is vital in conducting research about Zuo Zhuan and academic study in Qing dynasty, exerting an influential effect on methodology of academic study. It's in this sense that he is a pioneer not only in philosophy, but also in methodology of academic study.For this reason, this paper will conduct a comprehensive study on A Revised Edition of Duyu's Annotations on the Zuo Zhuan in terms of its origins and sequences of various editions, its note styles and noting methods. Meanwhile, limitations of his methodology of academic study and inappropriate annotations will also be analysed.