语言的模糊性和精确性是自然语言所具备的基本特征,在交流时人们既需运用准确的语言清晰地表达自己的想法,同时又需恰当地运用含糊词语和句式体现礼貌,从而实现有效沟通。外贸英文电子邮件作为国际贸易活动的主要沟通工具,有效地运用模糊语言能增进交易双方的感情、促进交易的顺利达成。本文主要通过分析模糊词语和模糊限制语来探讨其在外贸英文电子邮件中的作用。 The ambiguity and accuracy of language are the basic features of natural language. In the process of communication, people not only need to use clear language to clearly express their own ideas, but also need to properly use vague words and sentences to express their politeness so as to achieve effective communication. Foreign trade English e-mail, as the main communication tool of international trade activities, effectively uses the vague language to enhance the feelings of both parties and facilitate the smooth completion of the transaction. This paper mainly analyzes the role of fuzzy words and hedges in foreign trade English e-mail.