语言的模糊性是语言固有的特性。在日常的语言表达中,注意模糊语言的表达效果及语用功能,对于成功的交流有着积极的作用。本文从历时的角度对模糊语言的认识进行了简要回顾,同时对模糊语言的应用及语用功能做了具体分析,阐明模糊语言的使用在英、汉语言的表达中均有着不可替代的作用。 Language ambiguity is an inherent characteristic of language. In everyday language expression, attention to vague language expression and pragmatic function, for a successful exchange has a positive effect. This article makes a brief review of vague language from a diachronic perspective, and analyzes the application and pragmatic functions of vague language at the same time. It shows that the use of vague language plays an irreplaceable role in the expression of English and Chinese language.