Brain Training Toy Design For The Old

China has been one of the fastest ageing countries in the world.Under this trend,the problems brought by aging began to stand out,the old people's life will be of great inconvenience due to the decline of intelligence,in this paper,we know by interview that the elderly have enough time for entertainment every day,but the entertainment is relatively drab and old,there is no specific entertainment can slow down the decline of entertainment.There are almost no certain toys designed for the old in the market,specifically toys designed to prevent intelligence from declining.The physiological function of old people is falling,the psychological need special attention,therefore the demand for toys in function and design ways are different from ordinary toys.In this research,through the study of the observation and the interview of the old people's entertainment,we summarizes the old's entertainment in the aspect of features,material and so on,and on this basis,combining with the design characteristics of the elderly products on the market,designed a toy to slow brain aging,prevent Alzheimer by training hand's fine movement.