COPD is a chronic respiratory disease characterized by airflow limitation, which is not completely reversible, progressive in development, associated with abnormal inflammatory response of the lungs to harmful gases or harmful particles, and may be accompanied by airway hyperresponsiveness. Second, physical factor therapy 1, ultrasonic nebulizer inhalation therapy; 2, ultrashort wave therapy: can be used for COPD with chronic bronchitis or patients in the infection phase. It helps to improve blood circulation and promote the control and absorption of inflammatory response. Generally, it adopts the opposite method, which is placed in front of and behind the chest, using no heat or micro heat, and the treatment time is 20~30min, once a day, 15~20 times for a course of treatment. 3.Ultraviolet therapy: a.whole body ultraviolet radiation; b.local ultraviolet radiation; c.acupuncture point ultraviolet radiation; d.foot ultraviolet radiation; 4.sunbathing therapy: bare as much as possible, but pay attention to avoid exposure to the sun. Combined with exercise but pay attention to avoid a excessive; 5, cold bath therapy: (gradual principle) can be combined with exercise and body massage. Transcutaneous electrical nerve stimulation: using a frequency of 100Hz double channel four electrodes placed on both sides of the surgical wound, the treatment time is 30~60min, the intensity is 2 times the sensory threshold, 1~2 times a day, ten days as a course of treatment.