At the current stage of development and with the increase in the number of Internet users, the effectiveness of Internet marketing is growing every year. Communications from the business sphere are increasingly using the Internet. The use of modern technologies makes it possible to make search, purchase of goods and services accessible. In this regard, it is important to study the dynamically developing direction in the field of impact on firms and the general population The purpose of the study is to study the development of the Internet space in the EAEU countries and its impact on the development of Internet marketing in the region under study. Results. The rates and peculiarities of the dissemination of the information space were revealed, both in individual countries and in the region as a whole. In addition, the characteristic features of the Internet marketing market were described; the level of the legislative and legal framework was assessed. It should be noted that, despite the relative spontaneity of the Internet marketing market of the EAEU, the development trend has a positive direction; countries have all the prerequisites for achieving world indices. Therefore, the development of Internet marketing will gain accelerated turnover. The conclusion. There is a direct link between the development of Internet technologies, Internet space and the development of Internet marketing, e-commerce. It was revealed that there is an intensive introduction of Internet marketing into economic processes.