英语界对“边缘介词”的提法较模糊，尚无系统的阐述，文章通过对其定义、特点和分类进行较全面的分析，尤其是对边缘介词中最活跃的部分——分词介词作了细致探讨，旨在唤起英语工作者和读者关注此类“边缘”词的存在，并掌握英语边缘介词的使用规律。 In the English world, the formulation of “marginal preposition” is rather vague and has not been systematically elaborated. Through a more comprehensive analysis of its definition, characteristics and classification, especially the most prevalent part of the marginal prepositions, Meticulous exploration aims to arouse the attention of English workers and readers to the existence of such “marginal” words and to grasp the rules of the use of English marginal prepositions.