When acute myocardial infarction occurs, emergency medical attention is a must. Acute myocardial infarction mortality rate is very high, patients should avoid activities, timely arrival at the hospital after the doctor will stabilize vital signs, active drug anti-embolism, anticoagulation therapy, the condition permits, given emergency thrombolysis or coronary or interventional therapy. Acute myocardial infarction, come to the hospital, give oxygen, cardiac monitoring, urgent check blood routine, biochemical full, troponin, etc., immediately give antiplatelet drugs, double antiplatelet drugs shock amount of oral, give heparin or subcutaneous injection of low molecular heparin anticoagulant, give intravenous drugs to expand the coronary, antacid and other therapies, monitor the vital signs, and observe the changes of electrocardiogram. Combined with the condition, the condition permits, emergency thrombolysis or coronary intervention, timely implantation of stents, open the occluded blood vessels, can save the dying necrotic myocardium. Maximize the extent of necrotic myocardium in patients and improve long-term prognosis.