Kopet-Dag is a mountainous region, poorly illuminated geologically. The question of a clear understanding of the tectonic structure of Kopet-Dag is of enormous importance for determining the regime of groundwater, the direction of its flows, quantity, area of distribution, etc. The problem of water in Turkmenistan has always been one one of the most important, and now in connection with the socialist reconstruction of Ashgabat, the development of industry and cotton crops in the Kopetdag region, it is of particular importance. An accurate understanding of the true tectonic structure of Kopet-Dag is also required in order to find the place and role of the latter on the tectonic background of the vast territory embracing the folded regions of southern and northern Iran, Armenia, the Caucasus, Mangyshlak and Emba. This will undoubtedly bring clarity to the understanding of the nature of the relationship between the Kopet-Dag and the Karakum depression and will be the necessary material for solving the most important practical problem of Turkmenistan regarding the direction of the continuation of the Western Turkmen oil strip.