Real World Research based on clinical practice pay close attention highly in response to these problems, and the registry study had been applied widely in clinical practice. With the comparative effectiveness research methods and hospital registration study approach, based on the classes of medications recommended by 2014 GOLD and Chinese Treatment Guidelines for COPD, the purpose of this study is to objectively record the methods, efficacy and its influencing factors of COPD commonly used treatment methods/programs (Western medicine, Traditional Chinese Medicine and Integrative Medicine) in the actual medical environment, analysis of application characteristics for the different programs, and provide the basis for its revision and promotion. This is a first registration study for COPD in China.