EN
The paper analyses the semantic theories of empirical sciences, mainly their newest, structuralist version from the philosophical perspective. It is proved that structuralism interprets in various ways its fundamental categories: of model, of empirical theory, and of satisfaction relation. Some of the interpretations are inconsistent with the initial basis, that is, with the logical model theory. In constructing the conception of empirical theory, structuralists transgresses in a special way the logical model theory.