Abstract: Abstract Based on policy evaluation theory and system theory, the Logic Model as a whole is constituted by certain policy evaluation belief, values, technology and other factors. As a policy evaluation model, it has experienced a progressive evolution of internal logic and gradually developed into an effective policy evaluation theory to guide policy optimization.

Key words: Key words Logic Model, Paradigm Change, Internal Logic

摘要： 摘要 政策评价逻辑模型是以政策评价理论和系统理论为基础，由政策评价理念、价值和技术等构成的整体。作为一种政策评价模型和范例，逻辑模型经历了渐进性的内在逻辑演变过程，并逐渐发展成为一种有效的政策评价理论，进而在多层面上指导政策优化。

关键词: 关键词 政策评价逻辑模型, 范式变迁, 内在逻辑