Postoperative rehabilitation of lung cancer in situ mainly includes exercising coughing and sputum, encouraging early floor activities, paying attention to postoperative nutrition and appropriate psychological counseling. 1. Exercise coughing and sputum: Timely and effective help for patients to recover their lung function after lung in situ cancer surgery is a very important part of postoperative rehabilitation. Specific operation is to ask patients to take a comfortable position, take about 5 deep breaths, and then cough hard to expel the sputum during the last exhalation, and this exercise can be repeated several times a day. 2. Encourage early activities on the ground: after the operation, bed rest should be paid attention to in order to help the recovery, but if the patient has the ability to go down to the ground, it should be actively encouraged to try to go down to the ground. Attention should be paid to the gradual progress, can be first in bed to perform simple physical activities and then try to get down to walk and exercise. 3. Pay attention to postoperative nutrition: in order to recover as soon as possible after surgery, reasonable and balanced nutrition is also essential, postoperative patients should be appropriate to strengthen the intake of high-quality protein such as eggs, milk, and fresh fruits and vegetables such as broccoli, oranges and so on. 4. Appropriate psychological guidance: sick people, especially after surgery, are prone to physical discomfort resulting in psychological discomfort, appropriate psychological guidance can help restore the patient’s happy mood, to promote the repair of the organism with a positive and full of heart. Exercise should be carried out under the guidance of a professional doctor, so as not to play a counterproductive role due to improper operation.