Discourse markers are a common discourse phenomenon that is now widely used in spoken and written language.For the study of discourse markers,all major schools have their own characteristics and advantages.The unique understanding of the cogni?tive characteristics and process of human communicative activities fully demonstrates the rationale for the existence of discourse markers.The pragmatic role of discourse markers in the process of discourse generation and discourse comprehension points out a new direction for the study of discourse markers.This paper draws on the relevant viewpoints of relevance theory and attempts to explore the discourse markers to illustrate that the unique interpretation of the discourse markers of relevance theory has broad ap?plication prospects.