Optics is a very important part of physics courses, which mostly focus on theoretical explanations and calculations. Students generally have little time to do hands-on experiments, and the physics they learn often lacks connection with real life. Rainbows are a common natural phenomenon after rain. In addition, life is also full of visual themes of rainbows. Whether on campus, cartoon animations, religious images or gay movements, you can see concrete rainbows or rainbow colors. Using it, it can be seen that the rainbow is an image symbol that the general public likes. This course hopes to enable students to overcome the barriers to learning about optics and gain an in-depth understanding of common physical phenomena in life and their image meanings and symbols in human history and culture. Finally, the group worked together to find and discuss visual elements and symbols from popular music, complete the creative activities of the Rainbow Theater, and present a rainbow box that can interact with the audience.