Abstract: Postmodernist novel Snow White was based on the fairy tale Snow White and Seven Dwarves and other classical fairy tales. Its author Donald Barthelme adopted intertextuality to combine literary tradition with social reality. His creation inherits some literary features of classical fairy tales and rebels against them at the same time, which embodys the stunning creativity of this postmodernist. This article, from the perspective of intertextual analysis of metaphors of fairy tales in Snow White, interprets Donald Barthelme's deep concern about social reality hidden behind his random writing.