Atherosclerosis detector can screen human arterial vascular structure and function lesions at an early stage. It is a non-invasive examination, which collects wave signals of electrocardiogram, heart sound and limb pulse within the same cardiac cycle, so as to evaluate the degree of vascular sclerosis and stenosis, to achieve early diagnosis and treatment, and to reduce the occurrence of myocardial infarction in the late stage of the patient’s life. Under normal circumstances, each person’s blood vessels will gradually change with age, and the main changes are reduced elasticity of the large arteries, thickening of the middle layer of the intima and the formation of intima plaques, and the gradual formation of stenosis and so on. Due to individual differences, lifestyle, genetic factors and other influences, each person’s blood vessels change sooner or later and the degree of change there are differences in arterial vascular disease increases the damage to the heart, brain, kidneys and other important organs. Therefore, early detection of aneurysm blood vessels can be early measures to prevent myocardial infarction and cerebrovascular disease, reduce mortality and disability rate. Arteriosclerosis detector can effectively assess the degree of arterial vascular sclerosis and stenosis, so as to achieve early detection, early treatment, and effectively improve the clinical prognosis.