Postoperative nursing care of lung cancer should start with factors such as diet, living habits, psychology and living environment. First, a reasonable distribution of diet Patients with lung cancer should be properly matched with a semi-liquid diet rich in calories, protein and vitamins, such as eggs, milk, lean meat, chicken, rice, pasta, rice porridge, fish, vegetables and fruits. Never give up smoking and drinking and avoid irritating things. Second, respiratory function exercise For patients after lung cancer resection, respiratory function exercise should be carried out as soon as possible, chest expansion exercise should be done, and deep breathing should be taken at the same time to increase ventilation function through chest expansion; Do abdominal breathing, inhale deeply when you hold your chest out, and exhale deeply when you close your abdomen, so as to improve the effective capacity and respiratory function of your chest. Third, pay attention to psychological care. Fourth, choose a quiet environment to rest and pay attention to the environment. The patient's living room should be clean and elegant, with quiet surroundings to avoid noise. Keep the indoor air fresh and sunny, and regularly open the window for ventilation to avoid direct blowing and catch cold. To sum up, the quality of lung cancer care directly affects the overall curative effect of lung cancer treatment. Proper daily nursing can alleviate the pain of patients, accelerate the recovery process of patients and improve the quality of life of patients. Therefore, we must do the corresponding nursing work according to the doctor's advice after operation.