大数据环境促使情报信息变得日益复杂，建立起科学合理的科技智库情报信息共享体系，对为科研与政府决策提供优质且便捷的服务具有重要意义。文章基于大数据背景下科技智库的现实需求，首先，从智库类别与演化过程、科技智库的基础职能与地位等方面对科技智库的内容进行了解析；其次，结合国内外科技智库发展现状，典型科技智库建设情况以及科技智库信息共享内容和模式，指明我国科技智库情报信息共享体系现存问题及机遇，并基于此构建了科技智库情报信息共享体系的基本结构；最后，分别从信息资源内容结构、共享对象以及共享模式等方面，对科技智库情报信息共享体系提出了相应的优化对策。

The big data environment has made intelligence information increasingly complex. The establishment of a scientific and reasonable science and technology think tank intelligence information sharing system is of great significance for providing high-quality and convenient services for scientific research and government decision-making. This article is based on the actual needs of science and technology think tanks in the context of big data. First, the content of science and technology think tanks and the basic functions and status of science and technology think tanks were analyzed from the perspectives of the types and evolution of think tanks; Secondly, combined with the development status of domestic and foreign science and technology think tanks, the construction of typical science and technology think tanks and the information sharing content and mode of science and technology think tanks, the existing problems and opportunities of the information sharing system of science and technology think tanks in my country was pointed out, and then, the basic structure of the information sharing system of science and technology think tanks was constructed; Finally, from the aspects of information resource content structure, sharing object and sharing mode, respectively, corresponding optimization countermeasures and suggestions are put forward for the information sharing system of science and technology think tanks.