This article deals with the theoretical basis of cognitive research of the language policy concept. Corpus and experimental methods of the concept have been analyzed. The concept language policy is an object of different discourses, so as a language phenomenon it deals with the text taken into account the frequency of use, establishing a list of words related to this concept to establish the features of understanding the phenomenon of language policy by native speakers. The experimental techniques, namely, an associative experiment, the method of subjective definitions have been used. The corpus research methods have been applied to clarify the obtained results. Corpus-based and corpus-driven approaches to understand the concept have been analyzed. Some experimental methods have been used to study the content of the concept and its features. Such techniques allow obtaining information about the perception and interpretation of the concept under study by human consciousness. The study consists in the maximum coverage of the methods of analysis of the concept language policy. The theoretical component of the study of the concept language policy is analyzed. The aim of the article is to identify the necessity and possibility of combining several methods of studying the concept within the framework of linguocognitive analysis. To meet this aim, it is necessary to define the following objectives: 1) to describe the approaches to the corpus and experimental methods; 2) to point out the essence of corpus analyses; 3) to corpus analyses to identify the peculiarities of the concept`s content.