For the care of the elderly with cognitive impairment, first of all, we should respect the elderly, so that the patient can do something within their ability, do not let them do anything because of cognitive impairment, this will damage the self-esteem of the elderly, even if they complete some small games every day, it will help the patient psychologically. At the same time, we should pay attention to the environment of the home, such as adding some old objects to the furnishings, arranging the home facilities more suitable for the elderly to live, such as setting the font on the month board to be bigger, and preparing some tableware for the elderly that will not spill easily when eating. It is also necessary to prepare clothes that are more suitable for the elderly to wear and take off. If the elderly can travel, Alzheimer’s patients, as walking is not too smooth, need to pay attention to assistance, the ground they walk on is not too slippery to avoid falls, need to pay attention to anti-slip measures. The elderly also need to pay attention to their diet, mainly light, but also pay attention to ensure energy, sugar supply, do not appear hypoglycemia. This is because if there is not enough energy and blood sugar, it can also affect the cognitive function of the patient. If the disease of the elderly can be treated, it is better to try to give treatment to reduce the delay of the disease. If the elderly disease is indeed not able to delay the development, is bound to gradually worsen the situation, but also to give the elderly a good psychological guidance work, so that the elderly in advance to arrange their future life. For example, if the cognitive condition of the elderly allows, arrange the handling of their family property, the future life arrangements, try to let the elderly make the decision, caregivers try to respect the elderly, so that the elderly can do what they can do space and time. If it is true that the elderly are not able to do, it is also important to increase the work of the caregiver to minimize complications. For example, if they need to be active and are able to move around the house, they should walk around the house. If it is an elderly person who is able to go out, most patients with cognitive impairment may not be able to find their home after going out. It is important to prepare cards similar to small business cards in the elderly person’s clothes or wear a watch with positioning function to prevent the elderly person from being able to find even if they are lost and to minimize the occurrence of elderly accidents.