This design work has developed a potato planting educational game based on AR and Unity. By restoring the operation of farm tools and the plot of "Potato Kingdom", players can learn planting knowledge in interesting tasks. The design of 24 solar terms is closely followed, and each solar term is matched with exclusive farm tools and planting knowledge to form a systematic content system. Interactively supports 3D viewing, drag and drop operations, and device tilt simulation to visually display farm tool functions. Integrate the design task of solar term culture, both interesting and cultural connotation, and create a parent-child friendly experience of "learning by playing.