The amount of milk a day for a 13-month-old baby is about 400ml~600ml. At 13 months old, the baby has already increased the complementary food, so the daily milk quantity of about 400ml~600ml can satisfy the body’s demand. The most important thing to adjust the amount of milk and complementary food at this time is to see the growth and development of the baby, whether his height and weight growth is normal. If everything is normal, don’t be too attached to the exact amount of his milk, the general range of normal can be, if lower than the normal level, should be appropriate to increase the amount of milk at the same time, increase complementary foods. When eating complementary foods should be timed and quantitative, to first thin and then thick, from less to more to cycle gradually. Pregnant mothers may not necessarily focus too much attention on how much milk their children are eating, but should meet their children’s growth and development according to their needs.