A Fantastic Rainbow

American scholar Kristeva believes that intertextuality is a dynamic concept. It is the relationship between different levels of discourses and texts. And this dynamic structure contains the reader's participation. French critic Roland Barthes believes that none text exists in isolation. Each one is associated with the others. These texts are cross-referencing and linked to each other. In other words, every text is the intertext of other texts. About this, many scholars comment. Although their views are different, they all focus on the process of text to be formed. In the process of these texts, scholars no longer regard the writer as a "God"-like existence, but pay more attention to the role of the reader. So, some traditional concepts on the literary works and literature itself have changed, which embodies the dual functions of the intertextuality - construction and deconstruction.As one of Nabokov's masterpieces, Lolita has obvious features of intertextuality. The application of the narrative techniques such as intertextuality, irony, collage, parody has been repeatedly talked, and the function of deconstruction has been involved in depth. However, the function of construction of the intertextuality has been mentioned little. In fact, all things are mutually reinforcing. Intertextuality deconstructs the text at the same time constructs the text. This reader-centered paper discusses this dual role of intertextuality in Lolita from four angles (the narrator, the author, the text and the art) then concludes that intertextuality not only disrupts the meaning but also helps to establish the meaning. The two functions are a dialectical unity. I hope that this paper can provide a new perspective of the research of Lolita and even literary studies, and contributes to further study of the unique role of intertextuality and its aesthetic significance.