There is no cure for Alzheimer’s disease, but treatment can slow the progression of the disease and improve the prognosis. Alzheimer’s disease, commonly known as dementia, is a neurodegenerative disease of old age. Its pathogenesis is still unclear, and there is no cure for its cause. Patients begin with mild memory loss and cognitive decline, and in the middle and late stages develop severe dementia and are unable to take care of themselves. Ultimately, death is often caused by complications such as malnutrition, lung infections, and bedsores. Although Alzheimer’s disease cannot be completely cured, it is possible to slow down the progression of the disease and extend life expectancy through regular treatment and careful care. Drugs such as donepezil, memantine, and strychnine A are useful in improving dementia symptoms. In the early stage of the disease, encouraging patients to communicate with others, participate in social activities and strengthen physical exercise can slow down the decline of cognitive function and maintain the ability to take care of themselves in a longer period of time. In addition, careful nursing care is an important aspect of treating Alzheimer’s disease. If diagnosed with Alzheimer’s disease, it is recommended to standardize the treatment under the guidance of a professional physician to avoid delays.