近十年來由於《四庫全書總目》的資料陸續影印出版，藉助於這些新資料的幫助，學界對《四庫全書總目》的研究蔚然成風，新的觀點與認知也逐步建立，《四庫全書總目》研究的深化與開展指日可待，這是相當可喜的新氣象。《天津圖書館藏紀曉嵐刪定〈四庫全書總目〉稿本》是現存《四庫全書總目》稿本中，最新也是最先影印出版的資料。此一文獻的出版，對《四庫全書總目》的編纂方式與修訂重點，提供了第一手的資料，對《四庫全書總目》的文獻研究而言，其重要性不言可喻。本文之作，重點在探討這一稿本的編纂時間，以尋求其在《四庫全書總目》編纂過程中的適當定位，藉此確定這部稿本的文獻價值，為學界提供研究參考。

As materials of the "General Catalog of the Complete Library of the Four Treasuries" are successively published over the past decade, scholars have developed new viewpoints and new understandings of this fundamental work. Of all the present manuscripts of the "General Catalog", Ji Xiao-Lan's edition, now collected by Tianjin Library, is the lastly finished and the first copied and published one. It is an extremely important material for studies on the "General Catalog", because it is a first-hand material that reveals the compilation methods and editing guidelines of the "General Catalog". The current paper investigates the compilation time of Ji's edition to locate it in the development of the "General Catalog", and confirms its value so as to offer reference to the academic circles.