Infant vomiting and diarrhea are usually acute gastroenteritis caused by certain causes that stimulate the gastrointestinal tract, most of which are caused by the stimulation of food. Parents should carefully observe what the baby has consumed and pay attention to the diet on a daily basis to avoid it. The baby’s gastrointestinal function is weak and once the colder food is ingested it can cause gastroenteritis, so parents should pay attention to feeding the baby the right food temperature and not to eat cold food. There are also breastfeeding mothers who have eaten cold ice-cream type food, the cold may also be transmitted to the baby through the breast milk, and then lead to the baby’s bad stomach, in breastfeeding mothers must pay attention to their diet. Ingesting too much food and feeding too much food to the baby increases the burden on the baby’s gastrointestinal tract, which, together with the baby’s poor digestive ability, can easily cause the baby to accumulate food and cause gastroenteritis. Feeding baby should pay attention to choose less food and more meals, reasonable control of the amount of food, do not overeat. In addition, when adding complementary foods to your baby, you should also pay attention to the fact that adding too much complementary food or feeding too fast may also lead to vomiting and diarrhea in babies. The baby’s digestive tract is very fragile, parents must pay more attention when caring for the baby, if the baby vomits and diarrhea is serious, it is recommended to go to the hospital for a formal examination to find out the cause of the disease and accurate treatment.