Modern prestressed technology has promoted the rapid development of civil engineering, and is also the most widely used construction technology in the construction of large structures, especially Bridges. With the continuous development of prestressed construction technology, especially the appearance of prestressed materials, anchorage system and other technologies, the application scope and application effect of prestressed construction technology have been enriched. The article analyses the development history of prestressed technology, and discusses the application of prestressed materials and prestressed technology at present.