Against the backdrop of increasingly stringent requirements for material performance in modern architecture, polyurethane sandwich FRP composite panels stand out due to their innovative composite structure and outstanding comprehensive performance. This panel uses high-quality glass fiber reinforced plastic (FRP) as the surface layer and flame-retardant polyurethane (PU) rigid foam as the thermal insulation core layer. It is formed in one piece through advanced processes, skillfully integrating the weather resistance, anti-aging, and corrosion resistance properties of FRP with the efficient thermal insulation performance of polyurethane. Its structural design is scientific and reasonable: the upper and lower panels ensure overall strength and aesthetics, the core material achieves low thermal conductivity and energy-saving effects, and various interface forms take into account both installation convenience and sealing performance. As a new type of high-performance panel integrating advantages such as cleanliness, thermal insulation, and durability, it has become an ideal material for industrial plants, logistics warehouses, commercial buildings and other fields, providing an efficient and practical solution for modern construction projects.