The influence of copper deficiency on the growth was studied in schoolchildren, and on the osteogenesis--in experimental animals. The results of the investigations conducted have shown that copper deficiency may be one of the causes of disturbances in growth and osteogenesis in the growing body. Osteogenesis disturbances observed in the animals with copper deficiency were associated with the inhibition of the synthesis of enzymatic systems and protein metabolism in chondro- and osteoblasts.