Children can eat when they have a fever, provided they are not allergic to the fruit. But fruits have no special effect on the relief of the disease. Fever means that the body temperature exceeds the normal range, quiet state, axillary temperature ≥ 37.5 ℃ is fever. During the period of fever, children are prone to loss of appetite, fruit is rich in vitamins, and fresh and refreshing, beneficial to the human body, can be eaten. However, fruit has no special effect on the duration and severity of fever. Fever should avoid cold, greasy and other indigestible food, so as not to aggravate the burden on the intestinal tract, it is advisable to choose light and easy to digest food, reasonable supplementation of protein, to ensure balanced nutrition and improve immunity. There are many causes of fever in children, and it is recommended to seek medical treatment in time to avoid delaying the condition.