口傳文學通常以一種"文本"的形式呈現，但其中所隱現的民族文化意蘊卻促使人類學家去追尋其"本文"，并通過田野調查和民族志的闡述而探尋"本文"之所以得以展演的內在邏輯。普米族口傳文學在不同的層面上為當地人闡釋當前的生活倫理及社會規則提供了依據，而特定的社會、文化和歷史環境又為口傳文學的傳承和記憶提供了必要的條件。田野工作使我們得以把握某一文化的基本結構，進而可以對文本與本文之間的關系進行深層的闡釋。

Usually,oral literature is presented as a ‘text’in which the meaning of ethnic culture implied impels anthropologist to search the textual and the internal logic that the text is presented through fieldwork and ethnographic interpretation. The oral literature of the Pumi provides the local people with a basis to interpret their living ethics and social norms in several levels whereas the given social,cultural and historical situations provides necessary conditions for the inheritance of the Pumi’s oral literature. Fieldwork helps us to grasp the fundamental structure of a given culture and to explore the relationship of text and textual intensively.