Children with fever and stomach pain can be seen in acute gastroenteritis, acute appendicitis and other conditions, need to be treated according to the cause of the disease, such as acute appendicitis need to fight infection, if necessary, surgical treatment. 1. Acute gastroenteritis: children can appear fever, abdominal pain symptoms, often accompanied by vomiting or diarrhea, etc., some of the children to improve the routine blood test can be seen in the infection indicators increased. Treatment requires a reasonable diet, oral microecological preparations (such as Clostridium casei live bacterial powder) or four mill soup oral solution and other treatments, and at the same time need to reasonably reduce fever, such as the use of warm water wipes or oral ibuprofen and other drugs. Consider bacterial infection need to use antibacterial drugs, such as cefixime and other anti-infective treatment. 2. Acute appendicitis: a common gastrointestinal surgical disease in pediatrics, clinical fever, abdominal pain symptoms, abdominal pain is mostly periumbilical pain or metastatic right lower abdominal pain, some children may not be typical. During the course of the disease, reasonable fever reduction is required, along with the use of antimicrobial drugs, such as cefotaxime and other anti-infective treatment, and if necessary, surgical treatment. All of the above medications should be used under the supervision of a physician, avoiding self-medication. Children with fever and stomach pain may also be related to other causes, it is recommended to actively consult a specialist physician to evaluate and guide the treatment.