The aim of the research was the study of Russian and European antitrust laws, as well as its practical application to improve the legal regulation in the field of competitive relations in the Russian Federation and in integration associations, such as the Eurasian Economic Union of the Russian Federation, the Republic of Belarus and Kazakhstan.To implement the objectives of the study were analyzed in the basic legal framework of antitrust regulation and enforcement mechanisms in the modern field of combating anti-competitive actions of the European Union and the Russian Federation.The author analyzes the current state of competition policy of the European Union. Identified key concepts, objectives, structure, and sources of EU competition law. A special place in European research takes practice on the application of exemptions for agreements which proves its efficiency by allowing economic operators to significantly reduce the bureaucratic procedures, selfassess whether the subject is entered into an agreement under the antitrust laws or not, but most importantly it gives impetus to the development of innovative contributes to economic and technical progress by combining several building companies. Author analyzed legislation of the Russian Federation in the field of regulation of competitive relations in the provision of certain exceptions to the conclusion of these agreements, the examples of some antitrust cases.