The formation of ethnic peculiarities depends on the forms of communication with the system public relations. The main reason for the different psychological characteristics of ethnic groups and peoples of the world is that the natural evolution of the human species happened differently in different regions of the world. This, in turn, led to the formation of various psychological characteristics, various types of thinking. It is known that there is a close connection between the style of human thinking, character and other peculiarities with climate, natural environment, which also leads to differences in psychological peculiarities of ethnic groups. Ethnic groups start distantiating from each other, when objective conditions are created for ethnic separatism.