The main purpose of psychotherapy is to improve the patient’s memory and life function with medication, and different psychotherapy can be given according to the severity of the disease. 1.Early stage The patient’s symptoms are mild, and a few people can have some self-awareness. At this time, the patient should be informed of the nature, treatment and prognosis of the disease to help the patient further understand his or her condition. With the help of family members, give some simple instructions on how to improve memory and life skills, and let the patient participate in household chores, and at the same time, tell the patient to give up doing things that require intense brain use and are prone to danger (such as driving a car, swimming, etc.). 2.Middle stage The symptoms are more serious, and the self-consciousness is lost, and the memory and living ability are obviously reduced. At this time, the home environment should be kept as calm and comfortable as possible, and furniture should be simple and convenient, and should not be changed frequently. Develop a daily living system and carry out occupational therapy. In addition to participating in simple household chores, patients can also do some work that interests them and is within their ability (such as recreational activities). To improve the patient’s memory, nostalgia therapy and music therapy can be carried out. Use the patient’s memory of the past to recall and reinforce it. For example, repeatedly showing the patient meaningful photos from the past (wedding photos, family photos, etc.) and recounting unforgettable memories from the past can improve the patient’s mood, calm agitated behavior, and enhance residual memory function. In addition, repeatedly giving orientation and memory reinforcement (such as repeatedly emphasizing time, space and people training), gossiping with the patient about books, newspapers and magazines of interest, and allowing the patient to participate in simple mental games (such as simple puzzles) can help improve memory. 3.Late stage At this time, most of the patients cannot take care of themselves and lose most of their memory. In addition to taking care of the patients and training their physical functions, family members should have more contact with the patients and try to meet their requests in a good manner to prevent them from having the idea of being “abandoned”. In addition, depression, hallucinations, delusions, excitement and agitation and other psychiatric symptoms often appear during the course of the disease, which bring certain harm to the patient and society, and also bring certain difficulties to the family’s care, which is also the main reason for the diagnosis and treatment of the disease and hospitalization, and we must pay attention to it. Therefore, the patient should be observed meticulously, regularly, and the evolution of the disease should be noted. Patients with severe negative, injurious, violent behavior and obvious hallucinations, delusions and other dangerous behaviors should be promptly hospitalized if care is difficult. For advanced patients who cannot take care of themselves, a geriatric care home should be recommended. Wanderers should be restricted or accompanied to go out, or identification cards with the patient’s name and address can be placed on the patient so that others can escort him/her home if he/she gets lost. At the same time, family members should also learn to master some knowledge about the safety care of psychiatric symptoms and strengthen their awareness of dangerous behaviors such as injury, wandering and suicide to prevent accidents.