How to distinguish coronary heart disease and cerebral infarction should be distinguished from the following aspects. First, the clinical manifestations are different. Coronary heart disease presents with chest tightness and chest pain after activity, which can be relieved by rest, while cerebral infarction is a sudden onset of one side of the limb inactivity and slurred speech. Second, auxiliary examination can be found different, coronary heart disease patients with auxiliary examination to do dynamic electrocardiogram, can be found ST-T changes. Patients with cerebral infarction do cranial CT or MRI in the acute stage, which can detect acute infarct lesions. Third, the treatment is also different. Patients with coronary heart disease should be treated with anti-platelet, lipid regulation, coronary artery dilation and myocardial nutrition, while patients with cerebral infarction should be treated with anti-platelet aggregation, lipid regulation and improvement of cerebral circulation. Fourth, the prognosis is also different. If patients with coronary heart disease do not receive timely and effective treatment, myocardial infarction may occur leading to death. While patients with cerebral infarction can also lead to death or legacy if they do not receive standardized treatment.