To study the clinical efficacy of combining traditional Chinese and western medicine for obstructive pulmonary emphysema and its influence on pulmonary function.Methods:A total of 68 cases of patients with obstructive pulmonary emphysema were selected and randomly divided into observation group and control group,34 cases in each group.The control group was treated with ambroxol hydrochloride combined with aminophylline sustained release tablets and the control group was added with Chinese medicine decoction on the basis of control group.The 2 groups were treated for 1 month continuously.The clinical efficacy of 2 groups after treatment,the scores of main clinical symptoms and the pulmonary function in the 2 groups before and after treatment were compared.Results:The total effective rate was 91.18% in the observation group,which was significantly higher than 70.59% in the control group (P<0.05).After treatment,the clinical symptoms scores of cough and sputum,chest tightness,shortness of breath,difficulty breathing,palpitations,and fatigue significantly reduced,and the observation group was significantly lower than those of the control group (P<0.05 or P<0.01).The FEV1,FVC,FEV1%pred and MMEF of the 2 groups after treatment were significant higher than before treatment,and the experiment group was significantly higher than those of the control group (P<0.05 or P<0.01).Conclusion:Combining traditional Chinese and western medicine can significantly improve the clinical symptoms and signs of obstructive pulmonary emphysema patients,and enhance lung ventilation function.And the effect is significant.