：数字信息技术的发展为科学研究提供了便捷的工具、平台和方法，科研活动对海量数据集和数据分析的依赖与日俱增，并随着研究人员在科研数据监护、可视化演示、数字成果出版等方面的需求不断扩大，高校图书馆数字学术服务应运而生。文章以美国“常青藤联盟”八所高校及中国C9联盟的九所高校图书馆为调查对象，对这些代表了中美顶尖水平的高校图书馆在各个科研生命周期的数字学术服务进行网络调查和差异对比分析，揭示了中美顶尖高校图书馆数字学术服务的发展现状与差异，最后从服务形式、空间利用、基础设施建设等方面提出了我国高校图书馆数字学术服务的改进启示。

The development of digital information technology provided convenient tools, platforms and methods. It has also made data collection and analysis crucial parts of academic research, which leads to some new requirements like scientific data monitoring, visual presentation and digital publication. Therefore, in this paper, 8 Ivy League university libraries and the 9 Chinese C9 Leagues university libraries were chosen, and then a thorough online survey was done and  a comparative analysis was conducted. Specifically, attention was paid to explore what services are provided by those libraries during different period of a research project and how they are provided. Further comparison was conducted about the digital scholarship services provided in China's university libraries and those university libraries in the United States. Three suggestions are put forward in the hope to promote and deepen digital scholarship services in China's university libraries.