Asthma is a common chronic respiratory disease that seriously endangers children’s health, with a high incidence and often manifests itself as laryngeal cries, a chronic course of recurrent attacks, which seriously affects the learning, life and activities of the affected children and the growth and development of children and adolescents. The factors that induce laryngeal cries in children’s asthma are many, and the common factors include the following: 1. Climate: children patients are sensitive to climate change, such as a sudden change in temperature to cold or a decrease in air pressure can often stimulate an asthma attack, therefore, the onset of children generally increases significantly in spring and autumn. 2, mental factors: children’s asthma in the mental factors cause asthma attack is not as obvious as adults, but asthmatic children are often affected by emotions, such as crying and laughing or anger and fear can cause asthma attacks. Some scholars have proved that in emotional or other mental activity disorders are often accompanied by vagal excitation. 3, genetic factors: asthma is hereditary, the prevalence of family and personal history of allergies, such as asthma, infant eczema, urticaria, allergic rhinitis, etc. is higher than the general group. 4, exercise: foreign reports about 90% of children with asthma, exercise can often stimulate asthma, also known as exerciseinduced asthma (EIA), mostly seen in older children, vigorous and sustained (more than 5-10 minutes) after running is most likely to trigger asthma, the mechanism of its occurrence is a hundred immune.