Brief Talk on the Difference Between Conversational Implicature and Relevance

The two important topics in modern pragmatics are utterance produce and utterance interpretation. Grice's conversational Theory is regarded as the theoretical foundation of modern pragmatics. Sperber and Wilson's Relevance is considered to be the base of cognitive Pragmatics .The two have influenced the linguistic field on a large scale and drawn wide spread attention. This paper, firstly , introduces the basic views of the two ,then briefly discusses their dissimilarity CP and Relevance, implicit communication and explicit communication ,cognitive context and contextual assumptions, and finally some humble remarks made by the author.