Lobectomy is a surgical method to remove the diseased lung that cannot be cured by drugs in order to completely eliminate the lesion. Precautions after lobectomy are as follows: 1. The occurrence of postoperative whistling failure is closely related to the degree of pulmonary dysfunction, the extent of surgical resection, nutritional status, etc. The occurrence of postoperative whistling failure can be reduced by mastering the surgical indications and choosing the appropriate surgical approach before surgery. 2, postoperative retention of closed chest drains for more than a week, can directly observe the postoperative air leakage and bronchial stump healing. 3, the treatment of the original disease continues, for example, after pulmonary tuberculosis lobectomy, must continue the anti-tuberculosis treatment before surgery, effective anti-tuberculosis treatment before and after surgery is necessary for the recovery of the disease. 4.Control of complications, especially for patients with diabetes, blood sugar must be well controlled to facilitate the recovery of the wound. 5, we should pay attention to the nutrition after surgery, get out of bed as early as possible after surgery, and eat a high-calorie, high-protein diet after exhaustion. The postoperative recovery of lung lobectomy is as important as the surgical operation. Postoperative care and treatment in place can prevent complications, increase the success rate of surgery and improve the success rate of treatment.