《中图法》第三版的出版，使图书分类学的研究掀起了一个高潮，人们纷纷探讨三版的优缺点，有的单位还要根据新版改编原来的图书资料。笔者认为，分类法作为一种检索方法已不能适应社会发展，主题法将取代分类法的主导地位，图书馆界的同行们应把分类工作及其研究探讨的重点放 The publication of the third edition of the Chinese Library Classification has set off a climax in the study of the taxonomy of books. People have discussed the advantages and disadvantages of the three editions one after another, and some have to adapt the original books according to the new edition. The author believes that taxonomy as a search method can not adapt to social development, thematic law will replace the dominance of taxonomy, the library industry colleagues should focus their classification work and research