Objective To investigate the effects of exercise training combined with enhanced external ERCP on cardiopulmonary function and exercise tolerance in patients with coronary heart disease and chronic obstructive pulmonary disease (COPD).Method A total of 120 patients with COPD and coronary heart disease admitted to our hospital from May 2018 to May 2019 were randomly divided into group C (medication only), group B. (drug + exercise training), group A (drug + exercise training + EECP). The cardiac function before and after treatment in each group ［anaerobic threshold (AT), peak oxygen uptake (Peak VO2), peak oxygen pulse, left ventricular ejection Score (LVEF)］, lung function ［1 second forced expiratory volume (FEV1), FEV1 as a percentage of predicted value (FEV1%), forced expiratory volume in 1 second/forced vital capacity (FEV1/FVC)］ , exercise capacity ［ Peak metabolic equivalent (METs) and 6minute walking distance (6MWD)］ changes were recorded.Results Before treatment, there was no significant difference in cardiopulmonary function and exercise tolerance between groups (P＞0.05). After treatment, the A and B groups had FEV1, FEV1%, FEV1 / FVC, AT, Peak VO2, peak oxygen pulse, LVEF, The levels of METs and 6MWD were higher than before treatment, and the difference was statistically significant (P＜0.05). Compared with before treatment, the difference between group C and group C was not statistically significant (P＞0.05). Compared with group A, the improvement of group A was the best Group B was the second and group C was the worst, and the difference was statisticallysignificant (P＜0.05).Conclusion Exercise training combined with EECP can significantly improve cardiopulmonary function and exercise tolerance in patients with COPD and coronary heart disease in a short period of time, and has clinical promotion value.