Ultra High Performance Concrete (UHPC) is a new type of cement-based composite material with ultra-high mechanical properties, excellent durability, and excellent volume stability. This article introduces the basic preparation principle of this new composite material, and introduces the use of commonly used building raw materials such as cement, quartz sand, and mineral admixtures to prepare ultra-high performance concrete. Through comparative experiments, the types of mineral admixtures are studied The influence of fiber content and curing process on the compressive and flexural strength of ultra-high performance concrete has been determined to determine the optimal mix ratio. The experimental results show that this ultra-high performance concrete (UHPC) has good flowability. Under high temperature environment curing, the compressive strength of the specimen reaches 325MPa, and the flexural strength reaches 54MPa; Curing under natural conditions, the compressive strength of the specimen at 30 days is 187MPa, and the flexural strength is 35MPa. This paper then explores the application of this kind of ultra-high performance concrete in prestressed Structural engineering, replacing steel anchor plates and other products, and using the prestressed components prepared by it, all performance indicators meet the technical requirements, and the cost is significantly reduced, laying the foundation for the popularization and application of ultra-high performance concrete in prestressed Structural engineering