The regulations of the economic competition agreement were introduced by the 20th Act of 1931 after the economic crisis attention to the cartel regulations in Europe in the interwar period. We can realize that the regulation of the unfair business completion has a long codification history which started in the period of the Dualism. Before the end of dualism the Hungary regulated some question related to the cartels special attention to the circulation of commodities. In my presentation, I aim to describe the Hungarian and European codification antecedents and steps (for example: the regulation of industry) of the first Hungarian Cartel Act. This codification process was very important in Hungarian economy and social life because the economic changes started processes in both the field of legal life and legal sciences, and as a result of this, a demand arose to legally codify any rules in connection to cartels. The foundations of these were found in private law, especially in the regulations of the commercial law, which could be further elaborated upon and lead to a development of the regulations on the annulment of contracts in connection to dishonourable business competition.