Chronic Obstructive Respiratory Disorder (COPD) is a disease characterized by persistent airflow limitation. Chronic Obstructive Respiratory Disorder is commonly referred to clinically as Chronic Obstructive Pulmonary Disease, or COPD for short. It is a common lung disease characterized by persistent airflow limitation. Its common causes are long-term smoking, dust inhalation, asthma, etc. It is one of the major chronic diseases today. The main clinical manifestations of COPD patients are recurrent episodes of cough, sputum, shortness of breath, chest tightness, dyspnea and even pulmonary encephalopathy. The disease occurs in winter and fall, with or without cough and sputum in the early stage, shortness of breath, active chest tightness and dyspnea in the progressive stage, and sedentary breathing, cyanosis, and change of consciousness in the late stage. In addition to the above symptoms in the acute stage, there may be fever, coughing up a large amount of purulent sputum. The treatment of COPD is aimed at improving exercise tolerance and quality of life and avoiding acute exacerbations as much as possible. Commonly used therapeutic drugs are inhaled bronchodilators, such as salbutamol, terbutaline, formoterol and so on. In life, patients should actively quit smoking, prevent dust inhalation, avoid upper respiratory tract infections, etc.. The medication should follow the doctor’s prescription, and regular review.