Alzheimer’s disease is a chronic, progressive mental decline with an insidious and slowly progressive course. Nursing staff are required to readily adjust their nursing approach and methods to suit the individualized nursing needs of Alzheimer’s patients. Actively prevent and treat various risk factors that lead to dementia; such as poor lifestyle and eating habits, emotional depression, and environmental pollution. After retirement, the elderly should actively participate in social activities, make friends, cultivate interests, engage in mental and physical activities within their capabilities, and live with their children without being separated from their families or society. Help to take care of the patient’s daily life. The elderly with dementia have poor self-care ability in hygiene, diet, urination and defecation, living and other aspects of daily life, and need family supervision or assistance. Arrange a reasonable and regular life for the patient, ask them to wake up, go to bed and eat on time, so that their life is close to normal, and ensure enough rest and sleep time. Strengthen the patient’s functional training. Cultivate and train the demented elderly to take care of themselves. Family members should communicate more with the patient and encourage the patient to make friends and participate in social activities. Strengthen the training of thinking, memory and calculation ability. Those with speech impairment should have oral forging and training. Through conversation, the patient’s speech, thinking and other abilities are trained. Patients with paralysis should strengthen the functional rehabilitation training of limbs to prevent joint contracture and muscle straightening. It must be emphasized that helping patients to take care of their personal life does not mean helping them to do everything, nor does it mean watching them to do it by themselves, but it means supervising, checking and guiding, and its purpose is to protect the patient’s needs in life, train the ability to take care of themselves, and delay the decline of intelligence. The functions of the human brain, body and limbs are all in use, but not in use. For the elderly with mild dementia, we should urge the patients to take care of their own lives, such as buying food and cooking, cleaning up their rooms and personal hygiene, encouraging them to participate in social activities, arranging some time to read newspapers and watch TV, so that they can have some contact with their surroundings to distract their morbid thinking, cultivate their interest in life, activate their emotions, and slow down their mental decline. For the elderly with moderate or severe dementia, family members should spend some time to help and train the patients to take care of themselves, such as grooming, eating, folding clothes and toilets, and asking them to get up on time; family members or caregivers should accompany the patients to go out, recognize the way and the door of the house; lead the patients to do some housework, such as wiping the table and sweeping the floor; let the patients watch TV for a while after dinner. After a period of persistence, some patients can basically take care of themselves. Note that you should not try to save time and do everything for yourself, as this will accelerate the development of dementia. Encourage activity and ensure sleep. The patient can be encouraged to be more active according to his usual hobbies, but the amount of activity should not be too large. Sleep should be guaranteed for 6 to 8 hours a day, with naps in summer as much as possible. Diet care. Most patients with Alzheimer’s disease eat less or even refuse to eat due to lack of appetite, which directly affects the intake of nutrition. For these patients, choose nutritious, light and palatable food, with meat and vegetables, moderate food temperature, no thorns, no bones and easy to digest. To ensure that they eat well, those who have difficulty in swallowing should be given slow food, do not rush, to prevent choking and choking. For a few people with hyperphagia and overeating, limit the amount of food appropriately to prevent vomiting and diarrhea due to poor digestion and absorption. Pay attention to safety care. Patients with moderate to severe dementia should pay attention to their safety in all aspects. Do not let the patient go out alone to avoid getting lost or wandering off. It is better to put a card or cloth with the patient’s name, address and contact number in the clothes bag so that it is easy to find the patient in case he/she gets lost. When walking, someone should support or take care of the patient to prevent falls and fractures, and for elderly people with dementia living in high-rise buildings, they should be prevented from accidentally falling down. When taking a bath, be careful not to burn yourself. When eating, someone must take care of the patient to avoid choking and death by suffocation, and when eating fish, be careful not to get stuck by fish spines. The patient should be taken care of, sent to the mouth, see that the medicine taken down. Sleeping bed low, if necessary, can add fence. Do not let the patient alone to undertake household chores to avoid accidents such as gas poisoning and fire. The daily necessities of the elderly are placed in places where they can be seen and found. Dangerous goods such as medicines, chemical daily necessities, hot water bottles, power supplies, knives and scissors in the home should be placed in a safe, non-collision place to prevent patients from committing suicide or accidents. It is best to keep someone with you at all times. Improve the home environment. Home facilities should be convenient for patients to live, activities and rich life interest. Family harmony and warmth, so that the patient can experience the care and support of his family, encourage the patient to establish confidence to overcome the disease, and avoid all adverse stimuli. Pay attention to the prevention and treatment of physical diseases. Elderly people with dementia are unresponsive, unaware of cold and danger, and prone to physical diseases. Therefore, patients with dementia should be closely observed, pay attention to their diet, living and stool changes, and if any abnormality is found, they should be sent to the hospital for examination and treatment in time. If the disease is not detected in time and worsens, the patient may die due to the combination of physical diseases.