When a baby has a thick white tongue, it is considered to be related to indigestion or accumulation of food, and will be accompanied by symptoms such as bloating, diarrhea and heavy breath. Parents can give their children some probiotics to regulate the gastrointestinal function, and can also do pediatric massage to treat the child, such as supplementing the spleen meridian, transporting the internal eight trigrams, rubbing the Panmen, rubbing the foot three miles, moistening the abdomen, and kneading the spine, etc. The treatment effect is very good. At the same time, milk drinking babies should reduce the amount of milk appropriately, breastfeeding mothers should have a light diet and should not eat greasy, spicy or cold food, and for babies who drink milk powder, the concentration of milk powder should be reduced appropriately. The baby who has added complementary food, complementary food should be added from thin to thick, there is less to more, from a single to complex principles, complementary food should be soft and easy to digest.