学术界对于语用预设含义的认识存在纷争,但是就其基本特征已经达成共识,即共知性、隐蔽性和可撤销性,并被广泛地应用于分析会话。刑事讯问,是严格按照法律程序进行的一种独特的交际会话过程。本文从语用预设的三个基本特征出发,分析它们对讯问的作用,并指出其对司法实践活动的价值。 There is a dispute over the understanding of the presuppositions of pragmatics in academia, but consensus has been reached on its basic characteristics, that is, common understanding, concealment and revocability, and are widely used in the analysis of conversations. Criminal interrogation is a unique process of communication and conversation conducted in strict accordance with legal procedures. Based on the three basic features of pragmatic presupposition, this essay analyzes their effect on interrogation and points out their value to judicial practice.