The study bases its analysis on naturally conversational narratives and takes“fanzheng” as an exemplar. Through combing the synchronic plane use mode, it explores seven pragmatic functions in the process of narrative tokenization in conversational narration such as narrative reminder, narrative example, narrative summary, narrative verification, narrative frankness, supplementary narrative, and narrator's tone adjustment.The pragmatic function of "Fanzheng" is established in the subjective interaction of modal and intentional information exchange. According to the amount of information, the narrator/recipient will generate empathy for the story event with each other, so as to exchange conversation and narrative information to form a semantic default phenomenon of emotion.