The survival time of patients with lung failure varies from person to person, depending on the severity of their condition and the type of treatment. Pulmonary failure can cause the lungs to be unable to supply enough oxygen to the blood, resulting in oxygen deprivation and carbon dioxide retention in the body, which can lead to respiratory failure, hypoxemia, and other serious complications such as pulmonary heart disease, spontaneous pneumothorax, and pulmonary hypertension. If acute respiratory failure is not treated in a timely manner, the patient’s life can be in immediate danger. In the case of chronic lung failure, the five-year survival rate can be greater than 50% after long-term active control treatment. In addition, patients are advised to adjust their diet, improve their nutrition, enhance the intake of protein and various vitamins, pay attention to keeping warm and avoid lung infections caused by colds to prolong their survival time.