Objective To investigatethe utility of applying bronchoscopy combined with endoscopic injection in patients with chronic obstructive pulmonary disease. Methods 50 patients diagnosed with chronic obstructive pulmonary disease, were randomly divided into A, B groups (n=25,respectively). All the patients received internal routine treatment. Patients in group B received bronchoscopy and endoscopic injection therapy twice a week additionally. The efficacy was evaluated by comparing improvement of symptoms, pulmonary ventilation function and arterial blood gas analysis before and after treatment. The assessment of adverse reactions was also included. Results After two weeks of treatment, the patients in group B had been improved more significantly than the patients in group A, no significant adverse reactions were found. Conclusion It's safe and effective using bronchoscopy combined with endoscopic injection therapy for chronic obstructive pulmonary disease.