3D laser projection world mapping is an innovative technology that dynamically presents a global map on the surface of a building. With high-precision laser projectors, detailed world maps and geographic information can be mapped onto the building facade to form shocking visual effects. This technology combines projection mapping and 3D animation to show geographical changes, real-time data or historical evolution, while also enhancing the audience's sense of participation through interactive features. It is suitable for large-scale events, advertising campaigns and public art installations to bring immersive visual experience to the audience.