Left temporal lobe limited cerebral atrophy is a brain parenchymal injury and nerve cell atrophy and degeneration caused by various factors such as cerebrovascular malformation, trauma, heredity and malnutrition. When left temporal lobe restrictive cerebral atrophy occurs, patients may experience memory loss, sleep disorders and physical function decline, and need to improve the relevant examinations in a timely manner, especially cerebral angiography, and if it is found that there are arterial stenosis or occlusion in the lesion area, the scope and degree of stenosis or occlusion need to be clarified, in order to guide the next step of clinical treatment. In general, it is also necessary to pay attention to the prevention of various risk factors of atherosclerosis, such as high-fat diet, smoking and so on. It is important to pay attention to diet, develop good living habits, and strengthen exercise. When brain atrophy occurs, it is necessary to consult a doctor in time and standardize the treatment under the guidance of the doctor.