Cerebral infarction will not be lifelong without recurrence. Cerebral infarction is a common and frequent disease in neurology, which has a high mortality and disability rate and seriously affects the quality of life of patients. Clinically, there are various major risk factors for causing cerebral infarction, including age, gender, physical obesity, hyperlipidemia, hypertension, hyperhomocysteinemia, hyperglycemia, as well as seasonality and smoking, alcohol consumption, and previous history of cerebral infarction are also risk factors for cerebral infarction. If a patient has had a previous cerebral infarction, the risk of reinfarction is increased after recovery. Therefore, for patients with cerebral infarction, secondary prevention therapy should be given for a long time after recovery to prevent the risk of reinfarction. The secondary prevention medication mainly includes anti-platelet aggregation, lipid regulation and plaque stabilization, and risk factor control treatment for cerebral infarction in clinical practice.