Every three seconds,the world will increase an elderly Alzheimer's patients,and China is the most elderly Alzheimer's patients in the world. Nowadays,we often see the lost information of the elderly on the roadside and in the circle of friends. It can be seen that it is a very meaningful work to design products for such patients to reduce the probability of accidents. However,from the perspective of the product design of the elderly Alzheimer's disease patients on the market,there are still problems such as insufficient pertinence and too single function,which do not match the actual needs of the target group. Based on this,this paper explores the product design significance of elderly Alzheimer's patients,points out the product design principles for elderly Alzheimer's patients,and puts forward the product design strategy for elderly Alzheimer's patients.