模糊性是自然语言的基本属性之一。英语语言的模糊性在广告中的运用有其积极作用,也有其消极作用。广告设计,翻译人员要充分利用语义模糊的积极作用,避免其消极作用。人们也要增强对广告语言模糊性的认知意识,以防止虚假广告而上当受骗。本文通过对广告英语语言模糊性语用功能的介绍,对最大程度上发挥广告这一媒介作用以及提醒顾客防止假冒产品有一定的现实意义。 Ambiguity is one of the basic attributes of natural language. The use of English language ambiguity in advertising has its positive and negative effects. For advertising design, translators should make full use of the positive role of semantic ambiguity to avoid their negative effects. People also need to increase their awareness of the ambiguity of advertising language in order to prevent false advertising and be deceived. This article introduces the pragmatic functions of English ambiguity in advertising, which has a certain practical significance for maximizing the role of advertising as a medium and reminding customers to prevent counterfeit products.