Correct calcium supplementation for babies should be carried out after it is clear that babies are deficient in calcium, and appropriate ways of calcium supplementation should be chosen according to the specific situation, such as regulating the diet and supplementing with calcium supplements. 1. Define the timing of calcium supplementation: when the child is examined for calcium deficiency or has symptoms such as night terrors, night crying, excessive sweating, mental irritability, occipital baldness, etc., calcium supplementation is needed. 2. Calcium supplementation includes dietary regulation and calcium supplements: ① For infants and young children aged 0-6 months, breast milk and formula milk are the best calcium supplementation food; ② For children aged 6 months and above can be supplemented by adding calcium-containing complementary foods, such as fish, shrimp, soybean products, etc.; ③ When the situation of calcium deficiency is more serious, additional calcium supplements are required under the guidance of a doctor. In addition, you also need to pay attention to the reasonable arrangement of sun exposure time, for vitamin D deficiency of children also need to supplement vitamin D. When the child has a calcium deficiency, should be under the guidance of the doctor to carry out scientific supplementation, but also to prevent the supplementation of excessive.