The low-fidelity prototype project designed by our group is the implementation of augmented reality (AR) technology, one of the technologies of the fourth Industrial Revolution (IR4.0). Through discussion and research, our group designed an AR technology to facilitate people's shopping. By me and my team to complete this project together, I know, low-fidelity prototypes are not as simple as we first think, every player he needs to consider, need to take into account after may produce all kinds of problems, so we collected a large amount of data to improve our project, in this process, I perceive the many new terms and concepts, and through the communication with my partners, I think my language expression ability has been greatly improved. We also have a deeper understanding of the concept of AR, and we believe that AR will become more and more popular in our later life. After that, we will continue to study the AR field and constantly improve our project.