Inclusion Criteria:  A confirmed diagnosis of AECOPD Risk Window; Age ranges from 40 years to 80 years; Syndrome differentiation meets criteria of qi deficiency and internal cold fluid syndrome, qi and yin deficiency and unclean phlegm heat syndrome, or lung and spleen qi deficiency and phlegm-damp amassing in lung syndrome; Without participations in other interventional trials in the previous one month; With the informed consent signed.  Exclusion Criteria:  Pregnant and lactating women; Dementia, mental disorders and reluctant partners; Complicated with heart failure (NYHA Class IV), or Serious cardiac arrhythmias, or unstable hemodynamics; Current respiratory disorders other than COPD (e.g., bronchiectasis, active tuberculosis, pneumothorax, Pleural effusion, pulmonary thromboembolic, or Neuromuscular diseases affect respiratory movement function); Complicated with serious hepatic and renal diseases (liver cirrhosis, portal hypertension, bleeding of varicose veins, dialysis, or renal transplantation); Bedridden for various reasons; Allergic to the used medicine.