The survival time of patients with inferior wall myocardial infarction depends on whether the infarction treatment is timely and whether they can take medication regularly after treatment, as well as their own maintenance at a later stage, and cannot be generalized. The inferior wall myocardium is supplied by the right coronary artery, which is a branch of the sinoatrial node artery, so inferior wall myocardial infarction involves the sinoatrial node, causing ventricular tachycardia, ventricular fibrillation, and even third-degree atrioventricular block, leading to sudden death. Inferior wall myocardial infarction should be treated with thrombolysis or intracoronary stent implantation as early as possible within 6 hours or extended to 12 hours to recanalize the occluded vessel and achieve improvement of myocardial ischemia. After the acute phase, patients are given treatment to inhibit platelet aggregation and stabilize plaque, as well as to control heart rate and improve myocardial ischemia, and generally patients can survive for decades. If the infarct area is large, it may cause septal perforation, heart rupture and other dangers, which can be life-threatening at any time in severe cases. In addition, patients with myocardial infarction should pay attention to regular living, reasonable diet, prohibit high oil, high salt, high cholesterol diet, and eat more green vegetables and fruits.