Inclusion Criteria:  AECOPD Patients with pulmonary function grade GOLD2-4; Aged between 45 and 70 years old; Have a smartphone, and can skillfully use mobile Wechat official account; Willing to use Wechat official accounts to manage COPD; Willing to accept outpatient follow-up; Signed informed consent.  Exclusion Criteria:  Patients with asthma, bronchiectasis, tuberculosis, or other diseases; Patients with malignant tumors, liver and kidney failure, limb dyskinesia, and other diseases; Unstable angina pectoris in recent one month, myocardial infarction within a half year, severe arrhythmia, uncontrollable congestive heart failure, or poor blood pressure control (systolic blood pressure > 140mmHg and/or diastolic blood pressure > 90mmHg); Cognitive impairment; Combined with respiratory failure; With a life expectancy of less than one year; Plan to or participating in a COPD management project or mobile Wechat official account project; Completed another trial within 30 days.