Vomiting and acidic odor in young children is usually considered to be caused by infections due to indigestible or unclean food intake in young children. 1. When a toddler eats a large amount of food or indigestible food causing gastrointestinal digestion and absorption insufficiency, resulting in overloading of the gastrointestinal tract, the symptoms can be relieved to a greater extent by reducing the intake of greasy, stimulating foods, eating a light diet and controlling the intake. 2. In addition, due to the lack of immunity of young children, vulnerable to bacterial, viral infections, resulting in decreased digestive function, and even abdominal pain, diarrhea and other symptoms, at this time should be clear pathogenesis, targeted treatment. In addition, do not rule out intestinal obstruction and other more serious surgical diseases, when the child’s situation is urgent, should promptly seek medical attention, clear diagnosis.