Lung cancer is a common malignant tumor of the lung, and its main treatment is surgery (lobectomy or total lung resection). After surgery, temporary respiratory depression often occurs as well as patients cannot perform effective deep breathing and coughing up sputum due to surgical trauma and pain at the drainage site, and complications such as pulmonary atelectasis, lung infection and respiratory failure may occur. Timely breathing exercises after surgery can stimulate the body to establish compensation, which can help the recovery of respiratory function and improve the quality of life of patients after surgery. In addition to the application of analgesic drugs, patients can adopt a semi-recumbent position with a pillow under the knee to maintain a comfortable posture, and gently move or massage the neck and scapula to eliminate muscle tension and keep the breathing at a proper frequency and amplitude. and amplitude of breathing. In the first 72 h, 90% of the patients had 22-28 breaths/min. 2. Rehabilitation training of assisted respiratory activities: with the patient’s exhalation, the thorax is compressed by hand, which can enhance the inspiratory volume and airflow speed when the thorax is expanded by inspiration, and can promote the movement of bronchial secretions. The thorax can also be moved without stiffness due to movement, thus promoting the expansion of the residual lung. 3.Guidance on breathing: In this group of cases, breathing guidance was given after awakening from anesthesia, with 10-20 deep breaths every 2 h. Abdominal breathing was strengthened in the horizontal position until the chest drain was removed at 48-72 h. The guidance on breathing was beneficial to lung expansion, improving pulmonary ventilation and lung compliance. 4, early exercise training: early activity can prevent crushing pneumonia and lower limb venous thrombosis, after recovery from anesthesia on the day of surgery, you can guide and assist patients to start activities. Some patients are reluctant to exercise after surgery because of trauma pain or fear of trauma dehiscence, so the necessity of systemic functional training should be fully explained, and exercises within the range of motion of the upper limbs and shoulder joints should be performed.