The best time to save a sudden myocardial infarction is within 180 minutes of its onset, and the earlier it is saved, the better. After a myocardial infarction occurs, the myocardium in the corresponding area gradually becomes ischemic and necrotic, and the longer the time, the more necrotic myocardial cells, the greater the impact on cardiac function, the higher the chance of complications, and the worse the prognosis. The shorter the consultation time for myocardial infarction patients, the earlier they can receive appropriate treatment, the better the survival of the myocardium, and the hope and chances of recovery will increase. Sudden myocardial infarction should be treated immediately with nitroglycerin under the tongue to relieve angina pectoris, dyspnea and other symptoms of myocardial infarction, and at the same time go to the hospital urgently for immediate treatment, either thrombolytic therapy or emergency coronary stent implantation surgery to revascularize the infarcted area and relieve the symptoms of myocardial infarction. In addition, the best time to resuscitate patients with sudden myocardial infarction should not exceed 12 hours, and the success rate of thrombolysis is higher within 3 hours, while the prognosis of patients with more than 12 hours is poor.