Diarrhea baby should suspend or reduce complementary foods, can eat diluted milk or rice soup, combined with diarrhea gradually from liquid, semi-liquid diet transition to normal diet. For breastfeeding baby diarrhea can adhere to breastfeeding, diarrhea can be suspended or reduce the severity of complementary foods, artificial feeders can eat diluted milk or rice soup, pay attention to the need for small meals, and gradually from liquid, semi-liquid diet transition to a normal diet. It should be noted that the baby diarrhea and vomiting, need to fast for 4 to 6h, during which oral rehydration salts can be given appropriately, to be effectively relieved of the symptoms of diarrhea, given a liquid diet. For children with lactase deficiency, the dairy diet should be temporarily stopped, and fermented dairy products or soy products should be given, avoiding sucrose. When the baby has diarrhea and accompanied by vomiting and other symptoms of discomfort, should be timely to the regular hospital, clear the cause of the disease and follow the doctor’s instructions for treatment.