Abstract: Book classification in Chinese ancient times that occupies the dominant position forms on the basis of academic development, which has the certain academicness,reflects the academic development tendency,and impels the academic development in the certain degree.This paper expounds the relation of academic classification and book classification ,summarizes the Chinese ancient classification thought,and points out the academic value of book classification in Chinese ancient times also embodies the writing of narration and abstract,the utilization of mutual-mark and extra-classification.

Key words: China;Chinese ancient times;book classification;academic value