The paper examines the problem of interdiscipline in linguistic research. To illustrate this the discussion concerns both metalinguistic interpretation of the lexeme 'interdiscipline' as well as the ways of dealing with interdiscipline in the humanities. The authoress takes into account the linguistic texts and discusses various methods used in inter-discipline research in the humanities. Those methods are used so as to complete linguistic research with the data taken from the other scientific disciplines or in order to provide methodological inspiration which comes from the theories formulated on the grounds of both social and exact sciences. The text is summed up with the opinion not only on positive aspects of interdiscipline problems in linguistics but also on danger which may appear in such scientific research. Taking the latter into consideration, the authoress puts emphasis on any groundless usage of terminology taken from the other disciplines as well as superficiality emerging in treatment of scientific results in the other disciplines.