For 8-month-old babies, the backwardness of their chewing ability will cause them not to eat complementary food, which needs to be cultivated and exercised later in life, and for colds and other illnesses caused by the main cause of treatment. The backwardness of chewing ability will cause babies not to eat complementary food, this situation needs to be cultivated and exercise to improve. Exercise method for the baby 8 ~ 9 months of age, we must promptly adjust the nature of the food, let the baby to eat small particles of complementary food, and then gradually transition to large particles of minced, and then advanced to block, strip, 1 year old gradually adapt to the adult diet. When the baby suffers from colds, gastrointestinal diseases, may also not eat complementary foods, loss of appetite, mainly for the cause of the treatment, such as colds can be applied under the guidance of the doctor pediatric aminophenol xuanamen and other drugs for treatment to relieve the discomfort, and thus conducive to the child to eat complementary foods. When the baby does not eat complementary foods and fever and other symptoms, should be timely to the regular hospital for consultation, and under the guidance of the doctor to deal with.