Clinicians should take into full consideration the following characteristics of the elderly when diagnosing and treating pneumonia in the elderly: ① The underlying diseases and accompanying medical problems of the elderly are obviously more than those of the young, and treatment should be comprehensive and multifaceted; ② The selection of medications and dosage adjustments should be based on the alterations in pharmacokinetics after aging; ③ The incidence and severity of side effects of medications have increased, and should be closely observed after medication administration, as well as every effort should be made to protect the functioning of each important organ that has been aging function. Focus on the following points: 1, early detection, timely diagnosis 2, rational application of antibiotics The correct choice of antibiotics is the key to the treatment of bacterial pneumonia in the elderly. Once the diagnosis of pneumonia is confirmed, it is advisable to apply antibiotics as early as possible and in sufficient quantity, combine drugs if necessary, and prolong the course of treatment appropriately. At the beginning, empirical treatment can be carried out, and when the causative agent is clearly identified, antibiotics can be selected in a targeted manner or with reference to the results of drug sensitization. In the elderly, oral absorption is unstable, and injection is preferred. For those with decreased hepatic and renal function, the dosage should be reduced according to the metabolism and excretion pathway of antibacterial drugs. The renal function of the elderly has been significantly reduced, should be careful with aminoglycosides. If there is lung abscess formation, it is appropriate to be drained. The choice of antibiotics for pneumonia in the elderly also needs to be individualized according to the patient’s condition. If the patient is not elderly, the usual state of health is still good, there is no serious chronic diseases and important organ insufficiency, then the general antibiotics can be used, in the body temperature, normal blood, sputum becomes white after 3 to 5 days to stop the drug observation. If the patient is old, poor basic condition, accompanied by serious chronic diseases and complications of pneumonia, or pneumonia poisoning symptoms are very serious, then the use of potent broad-spectrum antibiotics, or a combination of drugs, and strive to control the infection as soon as possible. It is generally believed that penicillin plus aminoglycosides, or cephalosporin plus aminoglycosides have synergistic antibacterial effects, while penicillin plus cephalosporins have expanded the antibacterial spectrum, and the efficacy is additive. Treatment of this type of pneumonia in the elderly should be appropriately prolonged, in the body temperature, blood and sputum normal 5 to 7 days before considering stopping the drug. Chest X-ray should be reviewed during the treatment of pneumonia, in principle, antibacterial drugs should be applied until the lung shadow is basically or completely absorbed, at least most of it should be absorbed. However, some elderly people, especially those with COPD or long-term bedridden, the bottom of both lungs can often be heard fine wet rales. It is not necessary to apply antibiotics for a long time. 3, pay attention to the systemic integrated treatment measures once diagnosed with pneumonia in the elderly, should be hospitalized, bed rest, indoor air to maintain fresh and appropriate temperature and humidity. Patients with fever and shortness of breath should be given fluid replacement and maintenance of water-electrolyte and acid-base balance to facilitate sputum expulsion and reduce complications. If accompanied by chest pain, a small amount of analgesic can be used, and those with high body temperature should be cooled down to avoid inducing or exacerbating heart failure or acute coronary artery insufficiency, but avoid giving a large amount of antipyretic and analgesic to cause the patient to sweat profusely and fall off. The application of cough suppressant, asthma and expectorant is conducive to the relief of bronchospasm and sputum dilution and discharge, but should avoid the application of strong cough suppressant. Those with thick sputum and difficulty in coughing up sputum can be given wetting treatment, turning over and knocking the back or postural drainage to keep the airway open. For hypoxemia, oxygen therapy should be given to improve the nutrition of the patient and correct anemia and hypoproteinemia, which is conducive to the recovery of the condition. Encourage appropriate activities, pay attention to laxation and avoid exertion to reduce the occurrence of limb venous thrombosis or pulmonary embolism. Accompanying underlying diseases such as diabetes and coronary heart disease should also be actively treated. 4, treatment of complications to improve the level of treatment of severe pneumonia combined with respiratory failure need to be given oxygen therapy, appropriate application of respiratory stimulant, if necessary, tracheal intubation, mechanical ventilation. Cardiac failure should be given cardiotonic diuretic or vasodilator drugs. Complicated hepatic and renal insufficiency or gastrointestinal bleeding, antibiotic-associated diarrhea, etc. should be given timely and appropriate treatment.