Chronic obstructive pulmonary disease (COPD) is the most common chronic airway disease in China. Based on the digital management platform, 548 patients with COPD in stable stage were selected as the research objects. A multi-center, randomized, controlled clinical trial design was adopted to scientifically evaluate the clinical efficacy of breath-guided improvement of COPD exercise ability and reveal its mechanism of action. A breath-guided rehabilitation program based on intelligent iot and remote home was established and promoted to improve exercise ability and reduce acute exacerbation. To form high-quality clinical evidence, and realize tracking management, real-time evaluation and effect evaluation throughout rehabilitation.