习语的变异现象在英语中十分普遍,本文先从变异类型着手,将习语的变异现象分为两类:常规变异与临时变异,并借助真实语料中的例子详细介绍了习语变异的各种途径。在分析变异现象的基础上,本文指出研究这一现象对英语习语教学的启示。 The phenomenon of idioms variation is very common in English. This article starts with the types of variation and classifies the idioms into two categories: conventional variation and temporary variation. With the help of the examples in real corpus, Ways. On the basis of analyzing the phenomenon of variation, this paper points out the enlightenment of studying this phenomenon on English idioms teaching.