[目的/意义]智库在国家治国理政中发挥着越来越重要的作用，研究智库的知识创新对提升智库服务水 平、增强我国智库的核心竞争力具有重要作用。[方法/过程]文章首先对智库的知识创新内涵进行界定，对其创新 的受制成本制约、基于具体业务及发展阶段等特殊性进行了归纳。其次，对智库的知识创新层次进行了分析，确 定智库的知识创新分为项目和组织两个层次，并对两个层次的创新主体、动力、目标和特点进行总结。最后，基于 两个创新层次提出了智库知识创新的过程模型。[结果/结论]知识创新实现需要一定的条件，智库需要从组织资 源、组织制度、组织结构、管理方式和组织文化等方面提供相应保障措施，从而促进知识的不断创新，增加知识资 产，提高智库竞争力。

[Purpose/significance] Think tanks play an increasingly important role in national governance, and the study of knowledge innovation of think tanks is important in improving the service level of think tanks and enhancing the core competitiveness of think tanks in China. [Method/process] The article first defines the connotation of knowl⁃ edge innovation of think tanks, and summarizes the special characteristics of the innovation such as cost constraints, based on specific business and development stage of think tanks. Secondly, it analyzes the knowledge innovation level of think tanks, determines that the knowledge innovation of think tanks is divided into two levels: project innovation and organization innovation, and summarizes the subject, motivation, goal and characteristics of the two levels innova⁃ tion. Finally, a process model of knowledge innovation in think tanks is proposed based on the two innovation levels. [Result/conclusion] The realization of knowledge innovation requires certain conditions, and think tanks need to pro⁃ vide corresponding safeguards in terms of organizational resources, organizational systems, organizational structures, management styles, and organizational cultures, so as to promote continuous knowledge innovation, increase knowledge assets, and improve the competitiveness of think tanks.