Policy innovation is crucial for achieving the modernization of national governance capabilities. Existing research，dominated by policy diffusion theory，primarily focuses on the dissemination and adoption of policy innovation，often neglecting the study of government behavior post-policy adoption. In reality，government behavior following the adoption of policy innovation is closely related to the performance of the innovation. The theory of policy reinvention，through the study of policy texts，reveals the mechanisms of government behavior after the adoption of policy innovation. Therefore，the evolution of policy reinvention theory is particularly important for a comprehensive understanding of the policy innovation process. Policy reinvention refers to the process by which a primary-level government refines，updates，or assimilates the prototype policies of higher-level or peer governments and enacts corresponding public policies within its jurisdiction. Most existing studies regard “reinvention” as a stage of “policy diffusion”，resulting in overlaps and intersections in conceptual definitions and process mechanisms. This study argues that policy reinvention is fundamentally different from policy diffusion in terms of process mechanisms. Therefore，this paper clarifies the conceptual connotation of policy reinvention through a comparative analysis of concepts; constructs a comprehensive model of the policy reinvention generation process by reviewing the research on the policy reinvention process; and explains the generation mechanism of policy reinvention by combining the influencing factors of reinvention. The study finds that during the downward diffusion of policies，the tension caused by localization resistance serves as a trigger for reinvention. The core of reinvention is the learning mechanism，where different learning pathways produce four types of knowledge: empathic，conceptual，negotiated，and technical. Factors such as policy dimensions，reinventor dimensions，and environmental dimensions influence the generation and degree of reinvention. Issues such as the effect of time and geographical influence remain controversial. Policy reinvention provides a unique perspective for analyzing local government innovation. Future research can continue to deepen the distinction between policy reinvention and related concepts，exploring the generation mechanisms in different contexts to enrich the theory of policy innovation research.

"> Policy Reinvention, Generation Mechanism, Influencing Factors

政策创新对于实现国家治理能力现代化至关重要,现有研究以政策扩散理论为主导,聚焦于政策创新的传播和采纳,一定程度上,忽视了政策采纳后的政府行为研究。事实上,政策创新被采纳后的行为,与创新动机密切相关。政策再生产理论,通过对政策文本的研究,揭示政策创新采纳后的政府行为机制,因此,政策再生产理论的演进研究,对于完整理解政策创新过程尤为重要。政策再生产是一级政府在上级或者同级政府的政策原型上进行细化或改造,并在其辖区内出台相应公共政策的过程。现有研究大多将 “再生产”视作 “政策扩散”的一个阶段,因此,在概念界定和过程机制等方面,存在交叉重合。本研究认为,政策再生产在过程机制上,与政策扩散存在差异。因此,本文通过概念比较,厘清了政策再生产的概念内涵;通过对政策再生产过程研究的梳理,构建了完整的政策再生产生成过程模型;结合再生产的影响因素,共同解释政策再生产的生成机制。研究发现,在政策扩散的过程中,本土化阻力造成的紧张关系成为触发再生产的诱因;再生产的核心是学习机制,不同学习途径产生了共情、概念、协商与确定四类知识。政策维度、再生产者维度与环境维度等因素影响着再生产的生成及程度。时间作用与地理空间影响等问题尚存争议。政策再生产为解析地方政府的创新提供了独特视角,未来研究可继续深化政策再生产与相关概念的区分,探索不同情境下的生成机制,以丰富政策创新研究的理论。