Vitamins are a nutrient needed by both children and adults, and although the content is small, it is essential for pediatric development. There are many types of vitamins, including vitamin A from cod liver oil, eggs, carrots and other foods, which has a protective effect on children’s eyes, especially at night to look at the cell phone, the consumption of optic violet is relatively large to be timely supplementation. Vitamin B2 comes from animal liver, lean meat and soybean green vegetables, which is helpful for the health of the oral cavity and mucous membranes, and the lack of which is likely to cause stomatitis. Vitamin C often comes from vegetables and fruits. It can effectively enhance immunity and prevent gum bleeding, lack of which causes capillary fragility and slow wound healing. Vitamin D is derived from eggs, meat, and dairy foods, is the key to the growth of children’s bones, can help the body absorb and use calcium, lack of easy to also easily cause rickets. Vitamin K is synthesized by the liver and can cause bleeding in newborns or small infants if lacking.