The article covers the history of Belorussian immigrants adaptation to the new economical conditions in Siberian taiga zone at the end of XIXth - the beginning of XXth century. It is proved that the reason of successful nature use was in changing of the nature use model: increase hunting and gathering parts in general economic structure, growing fodder grass, changing the cattle grazing system and crops structure owing to prevailing frost-resistant crops. Active participation in well-paid works by hire gave a possibility to accumulate money, necessary for economical development.