The article is dedicated to the analysis of the problem of text in structuralism and post-structuralism, and to its realization in U. Ecos fiction and scientific works. It is demonstrated that Ecos conception of open work and his main artistic principles coincide with the general post-structural conception of the world as the text. In the article this conception and Ecos ethic positions are compared, and the conclusion about their correlation is made. It implies the certain ethic commitment of the notion of textual reality.