If the baby has fever with black loose stools, stool routine and occult blood test should be conducted. If there is bacterial infection, the child should be treated with anti-inflammatory drugs, and also need to take drugs to help digestion and anti-diarrheal drugs for comprehensive treatment. If the body temperature is above 37.5℃, physical cooling such as warm water bath can be given. If the body temperature is above 38.5°C, ibuprofen suspension should be given to reduce the fever. When a child has diarrhea with fever, it is important to pay attention to reasonable feeding and try to give small and repeated feedings. If the diarrhea is serious and causes dehydration, it is important to replenish the body’s water in a timely manner, preferably by intravenous fluids, and if necessary, to the hospital to further improve the relevant examination.