Patients with Alzheimer’s disease should pay attention to more companionship, better nutrition, and avoidance of infections. Early Alzheimer’s disease patients may only show memory loss, but as the disease progresses, patients may have mood changes, difficulties in self-care, getting lost, and the risk of falling, so they need to be accompanied by their family members. In the later stages of the disease, the patient will need to be cared for in all aspects of his or her life, including personal hygiene, eating, dressing, and washing. The ultimate cause of death in Alzheimer’s disease is malnutrition and secondary infections. Therefore, patients should pay attention to nutritional supplementation to enhance resistance and reduce the risk of infection. Therefore, patients with Alzheimer’s disease should be accompanied and helped to reduce the risk of complications.