Chronic obstructive pulmonary disease (COPD) is a large group of diseases that are mainly caused by chronic inflammation of the airways resulting in irreversible restriction of airflow. This disease is mainly caused by smoke and harmful particulate matter, so the treatment principles are targeted, as follows: 1. get rid of the stimulation of smoke and harmful substances; 2. reduce the non-bacterial inflammatory diseases of airways, i.e., non-infectious inflammatory diseases; 3. open the airways, open the airways mostly by using β2 agonists and M receptor blockers, and aminophylline, the main purpose is to open airway, so that the lung tissue and airway ventilation function back to normal; 4, regulate the body immunity, prevent the body cold.