Senile dementia, also known as Alzheimer's disease, is the most common neurodegenerative disease worldwide. The pathogenesis of this disease is not particularly clear so far and may be related to genetic and environmental factors. Multiple factors act on neurons causing irreversible and progressive death of neuronal cells. Currently, the treatment of this disease mainly includes two aspects. The first aspect is general treatment, mainly including family care. Family members must pay attention to the care of the patient, prevent the patient from accidentally wandering off, prevent the patient from falling, and prevent some accidents that cause injuries. In addition, it is important for the patient to listen to music, interact with others, and exercise more, all of which can delay the progression of senile dementia. The second aspect is pharmacological treatment, mainly using drugs that inhibit the reduction of acetylcholine. These drugs can increase the content of acetylcholine and improve the cognitive functions of patients to a certain extent, but so far, these treatments cannot reverse senile dementia.