Abstract
In this paper, the author analyzes and discusses the communicative approach used in the philosophy of science developed by N. Luhmann. He shows how Luhmann's communicative approach can be used to discuss a wide range "the classical problems" of knowledge: criteria for scientific knowledge, its autonomy and tools for achieving it, the problem of the foundation and structure of the scientific knowledge, the relationship between concepts and words, theories and methods.The author also analyzes the problem of the communication constraints imposed on the process of systematic organization of science (i.e. the delimitation principle): the specificity and opportunity of the social theory, its differences and similarities with the settled classic examples of the theorizing; the peculiarities of the particular types of the scientific observation.