The invention provides a prestressed reinforcement cage, which comprises a plurality of prestressed steel wires and steel rings, wherein a plurality of steel rings are sequentially arranged in a vertical direction; the prestressed steel wires extend along the axial direction of the steel rings, and are respectively and fixedly connected with the plurality of steel rings; the plurality of steel wires are in uniform distribution along the circumferential direction of the steel rings. The prestressed reinforcement cage has the beneficial effects that by adopting the technical scheme, the intensity of the whole reinforcement cage is improved, and the use safety is ensured.