Abstract: ［Purpose/Significance］This paper deeply investigated the historical dimension of the academic history research of library science in China, made a historical review and horizontal observation on the two climaxes of the research since the founding of the People's Republic of China, and explored the evolution and rational trend of the research.［Design/Methodology］It systematically organized the relevant materials of the academic history of library science in this period, and respectively summarized the overall situation and existing problems of the two research climaxes.［Findings/Conclusion］The two research climaxes not only have certain continuity, but also show different characteristics.［Originality/Value］On the basis of macroscopic summary of achievements and rational reflection, this paper analyzed the future direction of academic history research of library science, and put forward the viewpoints of establishing academic history system of library science with Chinese characteristics.

Key words: Library science, Academic history, Research climax, Chinese characteristics