In order to measure the contributions and utilizations of the books in library quantitatively,Hirsch index of books was defined and its deficiencies were discussed.Improved Hirsch index of books and its calculation formula were proposed.The calculation formula can be used to calculate the contributions and utilizations of the books in library quantitatively.Based on the books lending data in one university,the improved Hirsch index of books can reflect the contributions and utilizations of the books in library more objectively by calculating and analyzing.The improved Hirsch index of books can be used as reference for book acquisition.%为了对图书馆图书的贡献和利用进行定量的衡量，本文定义了图书馆图书 h 指数并分析其存在的不足，进而提出图书馆图书改进 h 指数并给出具体的计算公式，以定量计算图书馆图书的贡献和利用。以某高校图书馆的图书借阅为数据来源，通过计算、比较和分析，发现图书馆图书改进 h 指数能够更加客观地反映图书馆图书的贡献和利用，可以为图书采访提供依据和参考。
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