杜定友先生的特藏建设思想是其图书馆学术思想的重要组成部分,关于他在图书馆特藏建设方面的研究,学界仅限于其地方文献思想方面。笔者拟从其特藏思想缘起,以及具体实践、理论意义等方面展开论述,以期引起共鸣。 Mr. Du Dingyou’s idea of ​​special collection construction is an important part of his library’s academic thinking. His research on the construction of special collections in libraries is limited to his local literature and ideology. I intend to start from the idea of ​​its special collection, as well as specific practices, theoretical significance and other aspects of the discussion, with a view to resonance.