本文选择汉语方位词组“在……上”作为研究对象。基于对现代汉语语料库中含“……上”的词组的统计结果,从认知的视角对“在……上”的空间语义进行分析。研究表明,“在……上”的界标具有点﹑线﹑面﹑体的特征,而同样的概念在英语中要用at,in,on,above,over等方位词来表达。这说明语言表达作为人类认知的反映,是具有理据性的。 This article chooses the Chinese directional phrase “on ... ” as the research object. Based on the statistical results of the phrase “上 上” in the modern Chinese corpus, the spatial semantics of “在 上 上” from the cognitive perspective are analyzed. The research shows that the landmark of “on” has the characteristics of point, line, surface and body, and the same concept should be expressed in terms of at, in, on, above, and over in English. This shows that language expression as a reflection of human cognition is justified.