If malnutrition in children is caused by simply eating a small amount of food, the main thing to do is to increase the amount of nutrients. If it is caused by indigestion, it is necessary to take drugs to promote digestion. Children’s malnutrition may be caused by improper feeding of children’s nutritional intake, such as protein, vitamin food intake is insufficient, we must promptly adjust the children’s diet, let the children to eat some high protein, high vitamin food, such as dairy products, eggs, tofu, soya bean milk, vegetables, fruits and so on. But children’s malnutrition may also be caused by long-term indigestion of food, into the stomach, not be able to be fully digested and absorbed on the discharge of the body, parents should give children to take some promotional drugs in a timely manner, such as gastrointestinal tablets, etc., can promote gastrointestinal peristalsis, to help digestion, to improve malnutrition. Children’s malnutrition will have a direct impact on the growth and development of children, pay attention to a balanced diet in daily life. Children with malnutrition parents must take their children to the hospital in a timely manner to identify the cause of malnutrition, and then targeted regulation or treatment.