According to medical research, the key to autumn asthma is prevention. In late autumn, the weather elements such as temperature, air pressure and airflow change drastically, and the temperature difference between day and night is so great that children with weak constitution will easily catch a cold once they cannot adapt to this drastically changing environment, thus causing asthma attacks. Therefore, parents of children should first increase or decrease their children’s clothes according to the change of climate, and cover them well at night to prevent them from catching cold. How to prevent asthma in late autumn and early winter? 1. Identify the allergens that cause attacks. According to clinical investigation, the common allergic factors for children are dust, pollen, mold and dust mite, etc. Some foods such as fish, shrimp and crab are also important allergens. Some foods such as fish, shrimp and crab are also important allergens. In recent years, it has been found that drugs are also allergens that cannot be ignored. Therefore, parents of children with asthma should pay close attention to their children’s living and eating habits, look for allergens that cause asthma, and try to avoid contact with allergens, which is an effective measure to prevent asthma. 2, pay attention to strengthen nutrition, let patients eat more food rich in protein, vitamins, trace elements, such as C meat, poultry eggs, soybean products and fresh vegetables, fruits, dried fruits, etc.. 3, in daily life, should prevent children from excessive fatigue, ensure adequate sleep, strengthen physical exercise, enhance physical fitness, improve the body’s adaptability to climate change and tolerance, reduce the chances of morbidity. 4, the disease is prone to recurring attacks, delayed, causing adverse psychological impact on the affected children. Parents should actively help the child to build confidence to overcome the disease. Care and consideration, make it emotionally stable, happy spirit, to prevent asthma is very beneficial.