Calcium deficiency in 1-year-old babies can be supplemented in two ways: first, the supplementation of drugs; second, through food to supplement. Drug supplementation firstly requires oral vitamin D3 to promote calcium absorption, while oral calcium gluconate oral solution can be taken, and also oral DiQiao pediatric calcium carbonate D3 granules, which are commonly used in clinical practice. Food supplementation can eat more calcium-containing foods, such as soybean products, such as tofu, soy milk or soy milk powder is rich in calcium, dairy products, fresh milk, yogurt, cheese, etc. can be. The calcium content of seafood such as kelp and sea fish is also relatively high, and vegetables and fruits such as nori, apples and pears are also rich in calcium. 1-year-old babies with calcium deficiency should be supplemented by a combination of food and medicine, while paying attention to more sunshine.