After surgery, lung cancer patients can usually return to normal life in 2 weeks~4 weeks, but the specific time should be analyzed in the light of the condition. Lung cancer is a common malignant tumor of respiratory system, and the main treatment after diagnosis is comprehensive treatment mainly based on surgical resection, and the recovery time after surgery is mostly 2 weeks~4 weeks, i.e. about one month. However, if the patient’s physical condition is poor, the scope of surgical resection is large, and the side effects of radiotherapy are large, the recovery time can be slightly prolonged. After the operation, patients should pay attention to maintaining an optimistic mindset; eat more fish, beef and other high-protein diets, as well as fresh vegetables and fruits; and take appropriate physical exercise to improve immunity and speed up the recovery of the disease.