Lung cancer is a common disease. How long can a patient live in the late stage of lung cancer can be analyzed from three aspects: One of the factors affecting how long a patient can live in the late stage of lung cancer: treatment methods What treatment methods a patient adopts after being diagnosed and how the treatment is carried out have a great influence on the patient’s life expectancy. As far as the treatment methods of lung cancer in late stage are concerned, most of them rely on drug treatment, i.e. radiotherapy, chemotherapy and traditional Chinese medicine, because the cancer cannot be removed by surgery due to distant metastasis. 70% of patients with advanced lung cancer have their symptoms reduced after appropriate amount of radiotherapy, but radiotherapy will cause damage to normal cells of human body while killing cancer cells, so patients with advanced lung cancer who have weak body functions should choose carefully. Nowadays, biological cell immunotherapy is a new method added to tumor treatment methods. Biological immune cell therapy can well control tumor growth, improve patients’ survival quality and extend the hope of survival period. Biological immunotherapy requires only about 60 ml of blood, which may contain thousands of lymphocytes as the “kindling”. After the blood is drawn, it is cultured in a laboratory, during which time the lymphocytes can multiply from thousands to tens of billions. At the same time, these proliferating lymphocytes are activated with cytokines to become individuals with the ability to recognize and kill tumor cells, and are then transfused back into the patient. Because they are cultured in their own blood, these re-infused cells will not produce rejection reaction and will immediately start working to take up the task of removing small tumor lesions and shrinking large ones, while stimulating their own immune system to work again, thus reducing the disease and improving the quality of survival. Factor 2: Patient’s psychology The patient’s psychology also has a great influence on the patient’s life expectancy. For example, the patient’s psychological quality, state of mind, condition and physical function. Among them, physical function is the most crucial. Patients with good physical function and strong immunity can resist the development of cancer. During the treatment of advanced lung cancer, patients can regulate their immunity through diet and eat more foods with immune enhancing and anti-lung cancer effects, such as barley, yam, jujube, walnuts, turtle, etc.; it is appropriate to eat foods to reduce the side effects of radiotherapy and chemotherapy: goose blood, mushroom, shark, cinnamon, etc.; for patients with cough and phlegm, they can eat more radish, mustard, almond, orange peel, etc. Clinically, many patients and family members in the middle and late stages of lung cancer are concerned about how long the patients can live, and it is difficult to have an accurate answer to the question of how long the patients can live in the middle and late stages of lung cancer. Another important factor is the care of lung cancer in the late stage. Pay attention to the spiritual and psychological care of late stage lung cancer patients, you should communicate with them at any time, listen to them patiently, and make them feel the warmth of their relatives. Give more spiritual and psychological comfort to patients to eliminate their fear and build up their self-confidence to overcome the disease. Patients should be encouraged to actively participate in some social activities within their ability. Closely observe the vital signs of advanced lung cancer patients, such as coughing with sputum, encourage patients to cough it out by themselves, supplemented by aspirator if necessary, and focus on head to one side when resting and sleeping to prevent sputum and saliva asphyxiation. Enhance nutrition: Patients with lung cancer without swallowing difficulty should be free to choose food, and without affecting the treatment, they should eat more protein and carbohydrate-rich food, such as lean meat, chicken, duck, rabbit, fish, shrimp, soybean products and various cereals, If the nutritional status is poor, it is difficult to tolerate the surgical trauma, and the postoperative healing is slow and easy to be infected, which is extremely unfavorable to the surgical recovery.