This topic is an online recommendation, but I was interested to see it and talk about some of my suggestions. The first step is to understand the etiology of chronic respiratory failure, that is, what is the primary cause of chronic respiratory failure. Common lung diseases that lead to chronic respiratory failure are: chronic bronchitis, allergic asthma, chronic obstructive pulmonary disease, tuberculous destructive lung, interstitial lung lesions, pneumoconiosis and other lung diseases can cause the manifestation of chronic respiratory failure. The acute onset of these diseases is often the acute respiratory failure that we commonly see in the clinic and can also be an acute exacerbation of chronic respiratory failure. In the acute respiratory failure stage often patients need to go to hospital for treatment, while the chronic respiratory failure stage after the acute phase is often chronic for a longer period of time, and it is not practical to always stay in hospital. So many patients with chronic respiratory failure tend to have gone home and live a life close to normal, but of course the quality of life of such patients is seriously affected. Here I would like to emphasize the importance of getting standardized treatment during the acute onset of the disease to avoid entering the chronic phase and to stay away from chronic respiratory failure. The second thing to understand is that once the manifestation of chronic respiratory failure appears, we need to have a correct understanding of the disease. The diagnosis of respiratory failure is easily arrived at through the treatment process of the original disease in medical institutions, and it is naturally easy to arrive at the diagnosis of chronic respiratory failure. Then how should we, the patients of chronic respiratory failure who return to the society and family, face this disease correctly. I suggest the following: 1. Understand the causes of chronic respiratory failure, what are the factors that cause and aggravate respiratory failure, and try to avoid triggering aggravation. 2. Understand the reserve of your own lung function, and in the stage of chronic respiratory failure, exercise appropriately to increase the reserve of lung function by enhancing physical fitness. 3.The application of non-invasive ventilator can relieve the symptoms to a certain extent, and the long-term efficacy is related to the original disease. In addition, I suggest that patients with chronic respiratory failure should not have the feeling that they have been sick for a long time, causing them to use drugs indiscriminately. They should go to the hospital regularly to see the doctor and adjust their medication, and learn some medical knowledge to get rid of chronic respiratory failure as much as possible.