Acute heart failure, generally refers to acute left heart failure, requires patients to sit, avoid activities, immediately near the emergency room to the nearest emergency room, hospitalization in the hospital, acute heart failure mortality rate is high. Acute left heart failure, generally patients with a previous history of chronic heart failure, infection, exertion, emotional stress, acute severe myocardial ischemia and other triggers leading to rapid deterioration of cardiac function, the patient wheezing, sweating, can not lie down, and even coughing pink foamy sputum, at this time should reduce the patient’s oxygen consumption, the patient to remain seated and stationary, to reduce the consumption of oxygen, and the condition of the oxygen is given immediately. Immediately contact 120 emergency admission, monitoring vital signs, remove triggers, sedation, digitalis strong heart, furosemide diuretic, nitroglycerin or sodium nitroprusside vasodilatation, reduce the cardiac load, and asthma and other treatments, and in severe cases, even the need for respiratory assisted treatment. Acute heart failure is not a disease that can be treated on its own, and needs to be treated as soon as possible in the emergency room to avoid delays.