The problem of consistency in the development of ethnic group culture, and mankind as a whole, with tradition being a basic mechanism, through a new concept of «ethnopsychoculture of personality» in the context of transboundedness: Russia, Buryatia – Mongolia – China, where traditional culture initially implies spiritual values of a human life in the context of Buddhism culture and education. Buryat traditions, rites and customs are viewed in the context of centuries-long dialogue with Russian, «Semeisky (Old Believers)» in particular, culture, and, as a behavior sample, present culture semantic content. The author identifies three components of ethnopsychoculture model: cognitive, affective, and conative and behavioral serving to form system of values of mind development.The problem of ethnoculture, comprising all life spheres, involves such aspects as education and personality training, which are its primary focus.