This paper collected and analysed the materials concernig constitution and the nutritional level of the diets of inhabitants in Dandong city from 1959 to 1985. The results showed 1) Nutrients level of the diets increased with years and became rational. Intakes of energy and protein were over 110% and 97.1% of the RDA:the protein provided 10.5%, fat 30% and carbohydrate 58% of total energy intake; and 13.2% of protein originated from animal sources. 2) The weight of new-borns and children was less than that in developed countries. 3) The weight of children at age 8 and 14 increased 0.11 (boy), 0.06 (girl) and 0.33, 0.2lkg respectively. The height of the boys increased 0.37, 0.51 cm and the girls 0.28, 0.30 cm respectively. The increased rate is quicker. 4) At the age 0-7, the incidence of the des-eases caused by malnutrition declined yearly but incidence of rickets dropped down less. This may concern less sunning and less VD of the diets.