Prestressed carbon fiber plate technology is a new type of reinforcement and reinforcement technology. Compared with traditional carbon fiber plate bonding reinforcement, it belongs to active reinforcement technology. It uses the high strength and high elasticity material characteristics of carbon fiber plate and the principle of prestress technology. By pre-tensioning the carbon fiber plate, the carbon fiber plate is already at a high stress level before bearing the load stress transferred by the structure, thereby achieving the purpose of improving the structure’s stress.