How old is the child to break the night milk needs to be judged according to the specific situation of the child, the development of good can be short after 6 months, the development of bad can be delayed. Usually after 6 months you can gradually add complementary foods, if the child’s own nutritional status and growth and development is good and not sick. You can gradually wean the child from nighttime feeding after 6 months, because waking the child up for nighttime feeding after a certain period of time may affect the child’s sleep, which in turn may affect the child’s development. If the child’s growth and nutritional status is poor, or if the child is in the process of being sick, at this time need a lot of nutritional support, usually can not be rushed to wean the night milk. Weaning also depends on how well the child’s complementary feeding is working. If the complementary feeding is not working well, the child may not be able to keep up with the nutrients, and then we need to pause weaning at this time. If the complementary feeding is going well and the child is getting enough nutrients from the complementary feeding, then it is time to wean. The timing of weaning depends on the situation, and there is no specific time limit. Parents are advised to judge according to the child’s physical condition and not to rush to wean the child, so as not to affect the child’s development.