6-month-old babies can eat pureed food such as vegetable puree, fruit puree, iron-containing formula rice powder, formula milk and other pureed food. 6-month-old baby milk teeth began to erupt, the mouth has the ability to bite, chew, swallow non-liquid food, neuromuscular coordination continues to develop; infants to different colors, shapes, tastes of food to produce the ability to appreciate; intestinal digestion and absorption ability to quickly enhance; kidney excretion ability to improve. Complementary foods can be added gradually. The shape of food should be pureed food that is easy to swallow and digest. For example, pureed vegetables, pureed fruits, iron-containing formulated rice powder, formula milk and so on. Only one kind of food should be added at a time, following the principle of gradual progression from less to more, from fine to coarse, from thin to thick. Should be small meals, regular and quantitative, do not add too much at a time, add the complementary food must be fine processing, easy to digest, good taste, the baby will love to eat. Each increase in a food needs to adapt to 2-3 days, add complementary foods, parents should observe the baby has no bloating, vomiting, diarrhea and other adverse reactions, such as adaptation to add another, to avoid hasty, so as not to damage the baby’s gastrointestinal function.