Microfiber is an overlooked pollution problem caused by clothing waste. It damages the biological environment and enters the human body through the food chain. Therefore, Fiber Beat is hoped to be a wake - up call to this problem through an interactive process and an exaggerated form. Fiber Beat allows people to go on a body adventure. It amplifies the process of microfibers entering the organs. In contrast, people seem to shrink and enter their own bodies. The corridor is a crowded space that mimics the texture of the inner walls of organs. In the video area, people are given an immersive experience to observe the hazards posed by microfibers in the organs. On the floor, some diagrams was printed to explain the formation of microfibers. The wandering process cautions people: these microfibers, which are usually ignored by us, are ultimately affecting our health.