Dementia in the elderly is a clinical syndrome caused by the irreversible death of neurons. So far, the mechanism of the disease is not particularly clear, making it very difficult to cure dementia completely. However, there are some corresponding treatment methods that can delay the progression of the disease and improve the quality of life of patients as much as possible. These treatments mainly include exercise therapy, which involves getting patients to participate in appropriate physical activities that can promote cognitive development. In addition, letting patients listen to music more often, interact more with others, and continue learning can also delay the progression of aging. Furthermore, there are some medications that can improve the symptoms of dementia. Currently, the most commonly used worldwide are acetylcholinesterase inhibitors, which can increase the levels of acetylcholine and thereby improve cognitive function to some extent and slow the progression of the disease. Additionally, if elderly individuals exhibit some psychiatric symptoms, they can also be given some atypical antipsychotic medications to alleviate the condition.