To study the effects of Bailing capsule combined with respiratory rehabilitation training on chronic obstructive pulmonary disease (COPD) and influence on blood gas and lung function. Methods:A total of 282 patients with COPD in our hospital from February 2014 to December 2016 were divided into control group (n＝126) and observation group (n＝156) according to different treatment methods. All patients were given antispasmodic asthma, control of infection, expectorant and other conventional treatment. The control group was given bailing capsule and the observation group was combined with respiratory rehabilitation training on the bases of control group. The clinical efficacy of the 2 groups after treatment, the lung function, blood gas, 6 min walking distance (6MWD) before and after treatment were compared. Results:After treatment, the total effective rate in the observation group was significantly higher than control group (P<0.05). Meanwhile, the FEV1, FVC, FEV1/FVC and FEV%pre were significantly increased, and the lung function indexes of the observation group were significantly higher than those of the control group (P<0.05 or P<0.01). After treatment, the PaO2 and SaO2 were significantly higher, and PaCO2 decreased significantly in 2 groups. There was significant difference between 2 groups (P<0.05 or P<0.01). After 1-6 months of treatment, 6MWD showed a gradual increase trend, and significantly greater than before treatment. 6MWD of treatment group after 1~3 months of treatment was significantly greater than that of the control group (P<0.05 or P<0.01). Conclusion:Bailing capsule combined with respiratory rehabilitation training can relieve the clinical symptoms such as dyspnea in patients with COPD, improve lung function, balance blood gas index, increase patient's athletic endurance and improve the overall therapeutic effects.