Abstract: Policy diffusion is an important tool of national governance, and national governance provides a basic scenario for policy diffusion. However, the existing literature lacks a comparative study of policy diffusion between China and the West from the perspective of national governance. This article first explains the basic connotation of the perspective of national governance. After summarizing major differences in the political form, governance structure, and institutional system between the West featuring a stable state of system and China undergoing gradual reform, it proposes an analytical framework for the comparative research on policy diffusion. It further compares the differences between China and Western countries in policy diffusion models, mechanisms and dynamics, and explores the internal causes. This article summarizes three basic experiences in the practice of policy diffusion in China, namely, adhering to the overall leadership of the Communist Party of China (CPC), serving the overall interests of deepening reform, and focusing on the modernization of national governance. Finally, this article proposes that the localization of the policy diffusion theory can focus on three potential topics, i.e. the relations between the CPC leadership and policy diffusion in the modernization of national governance; the changes in intergovernmental relations and their impact on policy diffusion mechanisms; and the optimization of decisionmaking and incentive mechanisms and new impetus for policy diffusion.

Key words: policy diffusion, national governance, comparative study, theory localization

摘要： 政策扩散是国家治理的重要工具，国家治理为政策扩散提供了基本情景,但现有文献缺乏国家治理视角下中西方政策扩散的比较研究。鉴于此，本文首先阐释了国家治理视角的基本内涵，在总结体制稳态的西方和渐进改革的中国在政治形态、治理架构和制度体系主要差异的基础上，构建了一个政策扩散比较研究的分析框架，进而对中西方政策扩散模式、机制和动力三方面进行对比，并探讨了其内在原因。本文总结出中国政策扩散实践的三点基本经验，分别是坚持党的全面领导、服务深化改革大局和聚焦国家治理现代化，进而提出政策扩散理论的本土化研究可以聚焦国家治理现代化进程中党的领导与政策扩散的关系、府际关系的变迁及其对政策扩散机制的影响、决策机制和激励机制的优化与政策扩散新动力三个方面。

关键词: 政策扩散, 国家治理, 比较研究, 理论本土化