摘要

随着全球经济一体化进程的不断发展，世界范围内的经济交流与合作不断增多。在商务交流的过程中，有时候我们无法亲自与对方会面，此时，商务信函就成了代替会面的一种理想方式。信函的交流方式有异于面对面交流，写信者很难在文字中表达出自己的善意以及交流的意愿，因此，如何掌握在商务信函中写作的技巧，显得十分重要。商务英语信函不仅有传递信息的功能，它还肩负着建立与加强业务联系的重任，正由于其具有这些特点与功能使得礼貌原则的适用至关紧要。因此，对于商务英语信函中的礼貌原则的作用与应用具有研究价值。
本文主要研究礼貌原则在商务信函中的功能和应用，包括如何运用具体词语，积极动词，“你”语言和肯定句等，并以参考文献法和案例分析法为主要研究手段。通过深入探究，本文认为，礼貌用语不仅可以帮助企业建立良好的商业信誉，还可以更好地促进双方的沟通效果等，因此信函撰写者应充分遵从礼貌原则。

关键词：商务信函，礼貌原则，合作

Abstract

With the development of globalization, the communication and cooperation in business and economic field increase dramatically. In the process of business communication, sometimes it is busy for communicator to make face-to-face communication with others. In this situation, the business correspondence has become an ideal communicating form which substitutes the face-to-face communication. The communicating way of correspondence is very different from that of face-to-face communication, it is hard for the composer to express their kindness and desire of communication in the correspondence. Therefore, to master the skills of composing business correspondence seems to be quite significant. Business English correspondence not only possesses the function of transmitting information, but only undertakes the duty of building and enhancing business relation. It is these features and functions that make the applicability of politeness principles in correspondence count. 
   The major content of this thesis is the function and application of politeness principle in business negotiation, including how to use concrete words, active verb, you language and affirmative sentences. The methodologies of this thesis are literature review and case analysis. By deep study, the paper has drawn a conclusion: that politeness principle can not only help the enterprises to build a sound commercial reputation, but also to promote the communication going on well, and so on. So composer should fully conform to this principle in real practice.

Key words: business correspondence; politeness; cooperation