Abstract：
Herber Paul Grice, a famous British philosopher and professor of linguistics of Oxford University, when he gave lectures at Harvard in 1967, he defined his Cooperative Principle as, “Make your accepted purpose or direction of the conversational exchange in which people are engaged.” He also points out that in daily life, for the interest of various communication goals, people do not always observe those maxims, and then conversational implicature appears. Conversational implicature is a feature of language in use.
This paper is trying to analyze the conversational implicature phenomenon in business negotiation and to explore the potential meaning in business negotiation from a pragmatic perspective. Firstly, this paper introduces Grice’s cooperative principle and conversational implicature with selected examples and it tries to analyze the potential meaning of the conversation. Secondly, this paper gives some business conversations and aims to analyze the negotiation based on the four maxims of conversational implicature which was put forward by Grice. Through carefully selected examples, this paper manages to show how to behave politely in business negotiation. It’s hoped that this paper can be of help to those who are in such field to achieve successful negotiation.
In business negotiation, the hearer should understand the cooperative principle and its maxims first and then deduce the conversation implicature correctly from certain business context to reach the goal that the hearer can understand the special meaning correctly.

Key words：Grice; Cooperative Principle; Four Maxims; Conversational Implicature; Business negotiation 

摘  要：
格莱斯，是在牛津大学任教的一位著名的英国哲学家和语言学家。1967年，他在哈佛大学的演讲中提出合作原则，并指出合作原则的内容是：在人与人的交谈中，人们的谈话目的与方向应该能够让对方接受。他同样指出在日常的生活中，为了达到各种各样的交谈目的，人们会经常的不遵守那些准则。那么这时，会话含义就出现了。会话含义是语言运用中的一个基本特征。
本文主要分析了会话含义这一现象在商务谈判中的运用。同时又从语用学的角度探索了会话含义在商务谈判中隐含意义。首先，从语用学的角度来看，这篇文章主要介绍了格莱斯的合作原则和会话含义理论并分析了会话含义在商务谈判中使谈判受阻和继续的一些隐含意义。第二，本文主要举出一些与会话含义有关的商务谈判案例并以格莱斯提出的会话含义中的四个准则为基础，从而来分析商务谈判的。作者希望通过本文，能够对此领域的商务人士有所帮助，从而能使商务谈判更加顺利的进行。
在商务谈判的过程中，听者必须首先懂得合作原则以及它的准则，从而才能够从具体的商务谈判中正确的推测出会话含义，进而达到使听者能够充分理解商务谈判话语中的特殊含义的目的。

关键词：格莱斯；合作原则；四个准则；会话含义；商务谈判

1 Introduction
1.1 Grice’s Theory of Cooperative Principle and Its Four Maxims
In 1975, H.P. Grice, the author of Logic and Conversation put forward a tacit agreement in the conversational activities: the hearer and the speaker have a tacit agreement between each other.