雅各布森的诗学核心是“文学性”思想。“文学性”界说了文学研究的范畴对象,为文学批评提供了科学模式。然而,“文学性”研究容易落入形式主义窠臼而将文学的社会文化属性完全排除。雅各布森在建构“文学性”时,既注重保持文学的独立性与本体性,又通过著名的语言交际模式超越了狭隘的文学排他性观念,将“文学性”研究的视阈放大,把诗学与文化和社会实践等其它领域的关系纳入考察范围。“文学性”体现为语言交际中的诗性功能,文学与非文学的区别不在于文本是否具有诗性功能的成分,而在于诗性功能与其他功能成分的等级序列差异。 Jacobsen’s poetic core is “literary ” thought. “Literary ” defines the category of literary studies, providing a scientific model for literary criticism. However, “literary ” research tends to fall into formalism and completely exclude the social and cultural properties of literature. In constructing “literary”, Jacobson not only paid attention to keeping the independence and the noumenon of literature, but also transcends the narrow conception of exclusive literature through the famous mode of verbal communication, The threshold is enlarged to include the relationship between poetics and other fields such as culture and social practice. “Literature ” reflects the poetic function in language communication. The difference between literature and non-literary lies not in whether the text has the poetic function, but in the hierarchical sequence of the poetic function and other functional components.