The importance of the article deals with the necessity of developing such important general competence of the graduate as intercultural one which implies developing tolerance. The development of tolerance in the educational process of the university is made with the use of both traditional explanatory-illustrative technology and innovational technology of critical thinking which helps to develop students’ individual, reasoned, creative thinking. The aim of our research was to use the technology of critical thinking at the English practice classes at the Kazan national research technological university for increasing the level of tolerance three components, to make observations of the students’ behavior for estimating the level of these components, and also to summarize the results of this technology approbation. The critical thinking technology consisting of three stages, “challenge”, “understanding” and “reflection” was used in the form of the following technics – “cluster”, “concept wheel”, the table of easy and difficult questions, brainstorming, “insert”, filling in the concept-based table, creative writing in the form of five-line stanza and essay. The implementation of this technology added to increasing the tolerance level of students: having revealed the level of tolerance three components with the help of the empirical method observation we detected the prominent dynamics of tolerance.