Fever is a very common illness in childhood and can be caused by a variety of factors. Since children consume more nutrients and water when they have fever, they need to increase their dietary intake to replenish their consumption. However, due to fever, the digestive function of children is often reduced, which is manifested by poor appetite, abdominal distension, nausea and other symptoms, and the wrong diet is not only detrimental to the control of the disease, but also aggravates the gastrointestinal burden. Therefore, it is very important to give a scientific and reasonable diet for febrile children. A cold drink to reduce fever is not advisable Many parents of children think that when children have a fever, body temperature rises and water loss increases. Giving cold drinks on the one hand can cool down, and on the other hand can relieve the child’s thirst caused by water loss. In fact, this method is very undesirable. After eating cold drinks, the gastric mucosa and muscles of the feverish child will tighten rapidly, making it easy for the child to have abdominal pain, loss of appetite, indigestion, not eating staple foods and other digestive reactions. However, the appropriate to give the child warm or cold mung bean soup, rice and other easily digestible food, on the one hand, can replenish water, on the other hand, can also increase the nutritional intake, a double benefit, conducive to the recovery of the child’s condition. After a fever, the secretion of digestive juices will be reduced and the activity of digestive enzymes will be slightly reduced, resulting in indigestion. Therefore, it is appropriate to give children light and easily digestible food during fever, and avoid giving greasy food such as fried cakes, pork chops and steaks, fried steamed buns, cakes, fatty beef and lamb, chicken soup with oil, duck soup and so on. Vegetables should not be cooked with more oil. Three, sweet and greasy food to eat less carbohydrate food by the decomposition of carbon dioxide and other gases, after eating too much is likely to cause abdominal distension resulting in indigestion. In addition, too sweet food can also cause gastrointestinal heat and affect appetite. Such foods include various sweet drinks, ice cream, fruit juice, canned fruit, honey, fruit sugar, chocolate, etc. In addition, you should try to put as little sugar as possible when drinking milk to avoid bloating and affecting digestion. If the child eats whole milk, you can give whole milk powder properly diluted, according to 2 parts of milk powder plus 1 part of water to supplement water, which is beneficial to digestion and absorption. The other hand, avoid eating pork, rooster, carp, dog meat, mutton, longan, lychee, orange, mango, durian, etc., because these foods are hot and will aggravate the fever after consumption. Fifth, the scientific diet needs to be borne in mind children with fever to the main liquid food, can be used noodles, thin rice, egg soup, mung bean porridge, etc.. At the same time, you can eat watermelon juice, etc., in order to facilitate urination and fight the disease. The principle is to eat small amounts and many meals in order to reduce the gastrointestinal load and avoid aggravation of gastrointestinal reactions caused by fever. In addition, appropriate oral rehydration salts can supplement the increase of unmanifest water loss due to fever and facilitate the recovery of the disease.