Nine-year-old children with malnutrition is mainly to do the following aspects: first, the most important is the dietary regulation, should consume easy to digest, calorie content of the food is relatively high, such as can drink children’s growth of milk powder, eat more meat type of food. Second, we should pay attention to adjust the child’s spleen and stomach function, because nine-year-old children malnutrition, usually its digestion and absorption function is poor, spleen and stomach function is weak, you can eat spleen and stomach drugs, such as spleen powder or four mill soup and so on. Third, but also note that there may be chronic diseases of the upper gastrointestinal tract, such as chronic gastritis, gastric ulcer, reflux esophagitis, etc., should also promptly see the gastroenterology clinic timely standardized treatment. Fourth, pay attention to take a period of time of probiotics, also helps to regulate the intestinal micro-ecosystem, beneficial to solve the problem of malnutrition in children, such as oral bifidobacteria, bacillus boulardii, and so on the effect is good.