Abstract: Vagueness as a universal phenomenon can be found in verbal communication, especially in daily English. And vagueness turns out to be the nature of language. The purpose of this paper is to conduct the pragmatic analysis of vagueness in verbal communication. The process is analyzed by giving several examples, specially giving some dialogues to figure out several functions of vagueness. The result demonstrates that in verbal communication, there is more or less vague language, and sometimes only vague language can reach speakers’ inside purpose, thus can make conversation more successful and meaningful. So the conclusion comes out that vagueness should be used any time under any circumstances to bring out success in social communication. 

Key words: vagueness; daily English communication; pragmatic analysis

摘要：模糊语作为一种普遍现象，在言语交际中常出现，也是语言的本质。本论文针对分析言语交际中模糊语的语用功能，通过几个实例分析论证了模糊语的功能。最后得出结论模糊语在一般情境下可以使交际更成功，并指出模糊语言在语交际中有积极也有消极作用，大多时候也只有模糊语能表达对话者的意图，使对话更成功和有意义。

关键词：模糊语，英语日常交际，语用分析