The study carried out systematizing on the basis of analyzing and evaluating the theories of Russian and Western poetry, and the conceptions related to semiotics in literature. Since then establishing cultural codes in literary works on the basis of Vietnamese literature and famous literary works of mankind. From the system of codes in literary works in general and cultural codes in particular, applying them to the analysis of literary works currently used in schools, including the literary aspect currently used in the school, including the literary and linguistic aspects, the author offers new explanations as well as new proposals for teaching and learning Literature in Vietnamese schools, meeting the task of building and protecting culture in the new era of the country.