As the most common chronic lung disease threatening public health in the world today, bronchial asthma is affecting people of all ages worldwide, and there are currently about 300 million asthma patients worldwide. Asthma can start from infancy and is more prevalent in children. In 2000, the China Pediatric Asthma Collaborative Group conducted a survey on the prevalence of asthma among children aged 0-14 years in 43 cities across China, and the results showed that the prevalence ranged from 0.5% to 3,3% across the country, with a maximum of 5%. It has become a serious public health problem. Because of the complex etiology of asthma, individual differences, and symptoms of coughing, coughing and wheezing, a significant proportion of children with asthma are diagnosed with recurrent respiratory infections and asthmatic bronchitis. At the same time, the lack of awareness of asthma among physicians in various regions, as well as the untimely and unregulated preventive treatment after symptom relief, have led to many children with asthma having recurrent attacks until adulthood, thus seriously affecting the physical and mental health of children with asthma. Therefore, bronchial asthma in children must be treated.