本文係對「學校本位課程評鑑」進行基礎探究。首先從課程評鑑者內外部角色的相對性概念談起；其次探究在內外部課程評鑑相對性的諸多層級中，為何取學校為中心？接著，依循學者看法與實徵研究，嘗試對學校本位課程評鑑作一初探的定義，並分析其要素；然後從形成性、總結性、心理與社會政治等向度，分析學校本位課程評鑑獨特的評鑑功能，最後將針對其特殊的內涵逐一探究，並藉此釐清學校本位課程評鑑在課程評鑑發展中的定位。 This study aims to explore the foundation of “school-based curriculum evaluation”. The main purpose is to understand the curriculum evaluators’ relativity between internal and external evaluations and to explore why it is school-based. Next, this study would like to make a prior definition and essence analysis for school-based curriculum evaluation according to scholars’ opinions and practical study. Third, the special functions of school-based curriculum evaluation will be analyzed from the ways of formative, summative, and physical or social-political. Finally, the study will explore the special meanings of school-based curriculum evaluation and clarify its developmental role in curriculum evaluation.