国际交流,作为一种语言现象,在当今变得越来越密切。外交往来在双边关系中发挥着重要作用。因此越来越多的语言学,社会学,心理学,交际学及其他学科的学者,开始对国际交流进行广泛的关注。本文试图从语用学领域的重要理论,格赖斯的合作原则和利奇的礼貌原则出发,分析外交言语产生和理解的制约因素。 International exchange, as a linguistic phenomenon, is becoming increasingly closer today. Diplomatic exchanges play an important role in bilateral relations. Therefore, more and more scholars in linguistics, sociology, psychology, communication studies and other disciplines have begun to pay extensive attention to international exchanges. This article tries to analyze the constraints of the generation and comprehension of diplomatic speech from important theories in pragmatics, Grice’s cooperation principle and Leech’s politeness principle.