The most common clinical manifestations of cerebral atherosclerosis are: (1) Neurasthenia symptom cluster: dizziness, headache, insomnia, anxiety, inattention, memory loss (especially recent memory), slow thinking ability, and decreased activity ability. (2) Cerebral arteriosclerotic dementia: the main manifestation is mental-emotional disorder. Can not accurately calculate and say the time, place, character, obvious personality changes, such as emotional apathy, slow thinking, childish behavior, unconventional, sometimes its behavior like the usual said “old boy”, serious cases can also appear delusion, suspicion, hallucinations and other mental disorders. (3) Pseudobulbar palsy (“bulb” refers to the medulla oblongata of the brainstem): it manifests itself as increased muscle tone in the limbs, strong crying and laughing which are difficult to control, indistinguishable from crying and laughing, and difficulty in swallowing accompanied by choking, coughing and salivation. It has been found that cerebral atherosclerosis gradually starts slowly in middle-aged and elderly people over 50 years old. Lipid metabolism disorder has been recognized as an important factor in the formation of atherosclerosis, therefore, the prevention of this disease should develop good dietary habits, dietary structure should be reasonable, and adhere to low-salt, low-fat, low cholesterol diet has a role in the prevention of this disease.