《旧唐书·经籍志》和《新唐书·艺文志》是著录唐前以及唐代书籍著述和流传情况基本的目录文献。两本书的集部都对唐代以前的楚辞、别集、总集进行详细地记载,但由于成书背景和当时的流行思想不同,两部著作在收录方式上有着较大差异,在文人作品卷数方面的增减各有差异。文章分别从两唐书卷数的增加、排序的方式、疑乙倒或刊印错误等方面进行校释,力求在勘正书籍著录的基础上发现两唐书的学术价值。 “The Old Tang Book of Ji” and “New Tang Book Yi Wen Zhi” is a catalog of the basic catalog of the books written and circulated before Tang and Tang dynasties. However, due to the difference between the background of writing and the prevailing ideas of the time, there are great differences between the two books in the methods of collection. In the literary world There are differences in the number of works in the increase or decrease. The article respectively explains the increasing number of books in two Tangs, the ways of sorting, doubting or printing mistakes, and tries to find out the academic value of the two books on the basis of revising books.