Abstract: Mr. Ding Yu is one of the excellent representatives of the New China’s second-generation
expert in Textual Bibliography after Mr. Gu Tinglong, Mr. Zhao Wanli and Mr. Ji Shuying and so forth.
One focus of the interview is the initiating value of the Repair and Binding of Chinese Ancient Books. The
second is to summarize different cataloging methods of ancient books while compiling Bibliography of
Chinese Ancient Rare Books. What really counts is how Mr. Ding Yu form his individualistic approach,
experience and documentation during the period of collecting a large number of ancient books. Not only
does the article aim to demonstrate Mr. Ding Yu’s rich experience in identifying and compiling Chinese
ancient books, but it also has a profound influence on the repair of them.

Key words:  , Mr. Ding Yu, The repair of ancient books, Edition identification, Bibliography of ancient , rare books