ObjectiveTo explore the effects of moxibustion in improving the ventilatory function of patients with lung distension caused by deficiency of lung-spleen qi.Methods Totally 60 patients with lung distension caused by deficiency of lung-spleen qi were selected and divided into the observation group and the control group,with 30 cases in each group. Patients in the control group were given combined traditional Chinese medicine and western medicine treatment plus routine care,while patients in the observation group were treated with moxibustion with moxa sticks on the basis of treatment in the control group. The therapeutic effect between two groups were compared.Results After two continuous courses of treatment,in the pulmonary function test, the ratio of the forced expiratory volume in one second and forced vital capacity(FEV1/FVC)in the observation group was(73.13±1.23)%,and in the control group,it was(67.83±1.04)%(t=18.03,P<0.05). The total effective rate in the observation group was 93.3%,and it was 83.3% in the control group(χ2=10.92,P<0.05). Conclusions Moxibustion with moxa sticks could effectively improve the ventilation function of patients with lung distension caused by deficiency of lung-spleen qi.