For infants and young children with gastroenteritis, the following care measures can be used: First, give children a light diet, because after gastroenteritis occurs in infants and young children, their digestive capacity is temporarily poor, and giving children very greasy food can cause the symptoms of gastroenteritis in children to worsen. A light diet for children is more appropriate and can effectively reduce the gastrointestinal load of children. Secondly, children should be treated with medication, such as oral rehydration salts to replenish water and electrolytes. In addition, children can be kept warm in a timely manner, because the cold abdomen of infants and children will cause the aggravation of gastroenteritis symptoms, the application of warm water bags to keep the abdomen of children warm, children’s gastroenteritis symptoms will also be alleviated to varying degrees.