Vomiting in children is very common in clinical practice and is mostly caused by indigestion, food accumulation, irritating foods, and gastrointestinal infections. First of all, indigestion and food accumulation can cause vomiting in children. If they eat foods that are not easily digested, such as too much sweets and meat, fruits and other fruits, these foods, if consumed in excess, will be a heavy burden on the child’s stomach and intestines and will cause vomiting symptoms, which do not last long and will generally be relieved after vomiting once or twice. After the child has vomited, drink stomach-nourishing millet porridge, the symptoms will be relieved after 1 to 2 days. Secondly, irritating foods can also cause vomiting in children, such as cold foods, such as ice cream. Children who eat cold ice cream in the hot summer will vomit because it is too cold. The same foods are chili peppers and raw foods, such as raw fish. Finally, gastrointestinal infections, which are more common in clinical practice, are characterized by nausea, vomiting, and diarrhea, with accompanying symptoms of fever when the symptoms worsen. Parents are advised to take the child to the hospital for further consultation and treatment of fever and prevention of dehydration by infusion.