Children’s stomach pain and vomiting can be caused by acute gastroenteritis, acute upper respiratory tract infection, intussusception and other diseases, which can be treated with general treatment, medication such as oral rehydration salts and surgery. 1. Acute gastroenteritis: stomach pain at the beginning, followed by vomiting, may be accompanied by fever and other systemic symptoms. The treatment is fasting within two hours of severe vomiting and lying on the side to prevent aspiration; after two hours, oral rehydration salts can be given to prevent dehydration, and cephalosporin and other anti-infective drugs can be given at the same time. 2. Acute upper respiratory tract infection: systemic symptoms are obvious on the sensation can appear stomach pain, vomiting symptoms, can be used externally pediatric umbilical cord patch, oral pepsin powder and so on. 3. Intussusception: It occurs in children from 6 months to 2 years old. In the early stage, it is characterized by stomach pain and vomiting, and in the later stage, bloody stools may appear. 48 hours without complications, the child can take the conservative treatment of air enema, and more than 48 hours generally need surgical treatment. Children with stomach pain and vomiting may also have appendicitis, etc. It is recommended to consult a doctor to find the cause and treat it. The above medication should be used in accordance with the doctor’s instructions.