Atrial myocardial infarction is also a type of myocardial infarction. Isolated atrial myocardial infarction is relatively rare and often coexists with ventricular infarction. Therefore, the treatment principles for myocardial infarction are essentially the same, focusing on promptly improving myocardial ischemia, myocardial necrosis, and the long-term prognosis of the patient. The treatment mainly includes: first, reperfusion therapy, which involves thrombolysis for ST-segment elevation cases, stent placement for most patients, and bypass surgery for a small number of patients. The second aspect is secondary prevention and treatment, including antiplatelet therapy, blood pressure control, blood sugar management, diet, exercise, and other comprehensive treatments. The peculiarity of atrial myocardial infarction is that some patients may experience atrial fibrillation, thus some of these patients may require treatment to control ventricular rate.