In order to think about the question How can we use design strategies to promote change, foster creativity, and re-imagine the experiences dictated by a broad range of established systems, I come up with the research question: How designer make things both beneficial and last for long? Meanwhile, my main focus is on the Product Design and the Sustainable Life. In nowadays, people are more willing to buy a new object instead of repair an old broken object, and the designer are more willing to design beautiful, decorating products to attract consumers instead of making useful products. Under this condition, more and more beautiful trash was made and it was a waste of material. Therefore, I am trying to research and design a series of useful product that people will use for a long time.