There is no preferred drug for the treatment of pulmonary edema patients, according to the cause of the disease can be divided into cardiogenic pulmonary edema and non-cardiogenic pulmonary edema, the two treatments are not exactly the same, and general treatment is often used, such as taking a sitting position, oxygen inhalation; antagonistic treatment, active elimination and control of triggers; symptomatic treatment, such as cardiac, diuretic, vasodilator, and so on. 1. Cardiogenic pulmonary edema (1) Etiologic treatment: actively eliminate and control triggering factors. For example, those who are at risk of hypertension should quickly reduce the blood pressure to a safe range (systolic blood pressure <180mmHg), and those who have acute left heart failure due to cardiogenic causes should pay attention to the active treatment of the primary disease (e.g. myocardial infarction, arrhythmia, etc.). (2) General treatment: try to maintain a sitting position or semi-recumbent position, the presence of hypoxia inhalation of higher concentrations of oxygen to improve hypoxemia. (3) Pharmacological treatment: Morphine can be considered for those with obvious agitation and dyspnea, especially for those caused by acute myocardial infarction, but attention should be paid to its adverse effect on the prognosis. Morphine is prohibited in shock, respiratory depression and chronic obstructive pulmonary disease combined with pulmonary edema. Furosemide (e.g., tachycardia), vasodilators (e.g., nitroglycerin, sodium nitroprusside, etc.), and cardiotonic drugs (e.g., toxin furfuryl K or furfuryl C, etc.) can also be applied according to the condition. 2. Non-cardiogenic pulmonary edema: mainly for removing the cause, correcting hypoxemia, correcting water, electrolyte disorders and acid-base imbalance as well as supportive therapy. If the patient develops acute respiratory failure, appropriate PEEP mechanical ventilation should be selected. Once diagnosed with pulmonary edema, should promptly cooperate with the doctor to improve the relevant examination, and standardize the treatment.