Myocardial infarction treatment methods include thrombolysis, intervention, drug therapy and surgical treatment. Thrombolysis Thrombolysis is a treatment method that dissolves fresh blood clots in the infarct-related coronary arteries through intravenous injection of thrombolytic drugs to rapidly recanalize the occluded arteries. Patients who have thrombolysis 1-2 hours after the onset of disease have the greatest benefit. Indications for thrombolysis: Thrombolysis is preferred when acute ST-segment elevation infarction is within 3 hours of onset and when emergency percutaneous coronary intervention is not available. Patients with ST-segment elevation infarction with onset <12 hours, age ≤75 years, and no contraindications to thrombolysis can be considered for thrombolysis. 2.Percutaneous coronary intervention Emergency percutaneous coronary intervention (PCI) is a treatment method to treat acute heart attack by applying interventional techniques to mechanically open the infarct-related artery. Emergency PCI is the preferred and mainstream treatment method for acute heart attack. Interventional indications: Emergency PCI includes coronary balloon dilation and stenting procedures that mechanically open the occluded coronary artery and immediately restore myocardial blood supply and reperfusion. However, this technique requires a medical center with an experienced medical team and appropriate equipment to perform it. For patients with heart attack, especially those with contraindications to thrombolysis or bleeding complications, direct PCI is almost always considered; for those who are not successfully recanalized by thrombolysis, remedial PCI should also be performed. 3. Drug therapy In the acute phase of chest pain in patients with heart attack, antiplatelet drugs and anticoagulant drugs need to be used immediately, and patients whose blood pressure is not low can immediately take sublingual nitroglycerin and use statin lipid-regulating drugs as early as possible; In addition, other medications should be administered under the guidance of cardiovascular physicians according to blood pressure, heart rate and the presence of comorbidities. 4.Coronary artery bypass grafting is suitable for patients with infarction whose coronary artery blood flow reconstruction cannot be solved by intervention. It is to create a channel between the proximal and distal ends of coronary artery stenosis by using blood vessels from other parts. Although heart bypass surgery has some risks, the use of coronary artery bypass surgery is still one of the most effective means of treating coronary artery stenosis and myocardial ischemia worldwide. Which treatment method is adopted for heart attack depends on the severity of the condition and the individual patient's situation.