Cough variant asthma is a common pediatric disease and the primary cause of chronic cough in children，with an increasing incidence.Children are characterized by insufficient spleen qi，and based on the spleen-stomach theory of Li Dongyuan that “internal injuries of spleen and stomach result in various diseases”，the location of this disease is in lungs，and the pathogenesis is deficiency of healthy qi，phlegm-stasis obstructing lungs，and wind evil invasion.Cough variant asthma can be divided into acute stage and convalescent stage.In acute stage，the pathogenesis is wind evil invasion and lungs' failure to govern ascent and purification，and the therapeutic methods are dispelling wind to release exterior and lung qi failing in ascent and purification，with modified Sangju Decoction as the main formula.In convalescent stage，the pathogenesis is lung-spleen qi deficiency and phlegm-stasis obstructing lungs，and the therapeutic methods are invigorating spleen，tonifying lungs，resolving phlegm and dissipating stasis，with modified Jiawei Liu'an Decoction as the main formula.The methods of tonifying spleen and stomach in transportation，resolving phlegm and dissipating stasis were used throughout the whole treatment process.Measures are adjusted according to different disease stages and same disease is treated with different therapies，so as to provide new ideas for the treatment of cough variant asthma.