近半个多世纪以来,伯恩斯坦的教育社会学与系统功能语言学一直不断相互吸收与借鉴。本文尝试从系统功能语言学视角解读伯恩斯坦提出的知识结构的概念。我们在回顾两个学科的对话历史基础上,概括介绍了伯恩斯坦的知识结构理论。我们借鉴马丁对语域及概念功能的讨论,提出从词汇分类、语法隐喻和行为序列关系三个系统出发来探讨各种不同知识结构的异同。 For nearly half a century, Bernstein’s educational sociology and systematic functional linguistics have been constantly absorbing each other and learn from. This article attempts to explain Bernstein’s concept of knowledge structure from the perspective of systems functional linguistics. Based on a review of the dialogue history of the two disciplines, we briefly introduce Bernstein’s knowledge structure theory. We draw on Martin’s discussion of register and concept functions, and propose to discuss the similarities and differences of various knowledge structures from the three systems of vocabulary classification, grammatical metaphor and behavior sequence.