For patients with severe pneumonia, prompt control of infection, suppression of the inflammatory response, enhanced airway management and ventilation support, and avoidance of circulatory collapse are needed. Pneumonia generally refers to the inflammation that occurs between the terminal airways, alveoli, and interstitium, and can be triggered by pathogenic microorganisms, physicochemical factors, immune injury, and allergies and medications. Of these, bacterial pneumonia is the most common type of pneumonia. Severe pneumonia means that the degree of inflammation is more severe and there may be the possibility of spreading the inflammation in the lungs to the whole body, so it is necessary to clarify the cause of the inflammation and to use medicines symptomatically. 1. If the pneumonia is caused by a bacterial infection, anti-infective treatment is needed to control the infection rapidly. Sputum culture and sensitivity tests are usually needed to select antibiotics that are more effective in killing bacteria. 2. 2. If the pneumonia is caused by viral infection, such as influenza, antiviral drugs such as oseltamivir can be used. In addition, hormones can be used as appropriate to treat the symptoms and inhibit the inflammatory response. However, it should be noted that hormones may lead to secondary infection, osteoporosis, femoral head necrosis and other more serious sequelae. 3. For those with respiratory failure and dyspnea, airway management and ventilation support should be strengthened to ensure the patient’s breathing and avoid inducing hypoxia. In addition, for patients with severe pneumonia, supportive treatment at the immune level and nutritional level is needed. In conclusion, severe pneumonia is a serious disease that needs to be examined and treated strictly by a doctor, and patients and their families should strictly cooperate with the doctor.