There is no drug that can completely reverse or stop the progression of dementia. Psychosocial, general support, and drug therapy should be provided as early as possible in the early stage, and drug therapy generally includes improvement of cognitive function, antidepressant drugs and antipsychotic drugs. 1. Psychosocial treatment: Encourage participation in social activities, provide vocational training, group therapy, music therapy, etc., adjust the living environment, and prevent accidents such as falls and injuries, in order to slow down the rate of decline and improve the quality of life. 2. Pharmacological treatment: including drugs to improve cognitive function, such as donepezil and strychnine A, etc., which mainly increase the level of acetylcholine in the brain; memantine can antagonize the N-methyl-D-menthane (NMDA) receptor and regulate the activity of glutamate; and brain metabolism enablers such as olanzapine, etc. can also be used. In addition, many patients in a certain stage of the disease appear psychiatric symptoms, such as hallucinations, delusions, depression, anxiety, agitation, sleep disorders, etc., can be given antidepressants and antipsychotics, the former is commonly used selective 5-HT reuptake inhibitors, such as fluoxetine, paroxetine, etc., and the latter is commonly used in the atypical antipsychotics, such as risperidone, olanzapine, quetiapine and so on. 3. General supportive treatment: supportive treatment of severe patients with serious deterioration of their own ability to live, often leading to malnutrition, pulmonary infection, urinary tract infection, pressure sores and other complications, should be strengthened supportive treatment and symptomatic treatment. Alzheimer’s disease should be timely to the regular hospital treatment, under the guidance of professional doctors to choose the appropriate treatment to improve the quality of life.