Forthe child’s optimal growth and development, the normal provision with vitamin D isrequired. The vitamin D levelsin newborn depend directly on the mother’s provision with this vitamin, who is a single vitamin source for the child. The purpose of the study is to assess the provision with vitamin D in newborns of Arkhangelsk city in winter. 25(ОН)D determination in the blood serum of 55 newborns and their mothers was carried out using the method of the enzyme-linked immunosorbent assay at the laboratory of Arkhangelsk Children’s Regional Clinical Hospital. Resulting from the test carried out, only 4 (7%) children had the normal level of vitamin D, 36% (20 children) had the level corresponding to the deficiency: 14 (26% children) had the insufficiency of this vitamin, 17 (31% children) had a severe deficiency. The data obtained indicate the necessity to optimize the activities on the vitamin D deficiency prophylaxis in the pregnant women and support the prescription of vitamin D drugs to the newborns of Arkhangelsk city from the first days of the life.