The invention belongs to the technical field of high-temperature copper oxide superconducting materials, and particularly relates to a method for preparing a single-domain rare-earth barium copper oxide superconducting ring by a bottom seeded infiltration growth method and the superconducting ring prepared by the same. The method comprises the following steps: preparing solid-phase source powder; preparing liquid-phase source powder; compressing a solid-phase precursor ring; compressing a solid-phase supporting layer; compressing a liquid-phase source precursor block; compressing a Yb2O3 supporting block; preparing neodymium barium copper oxide seed crystals; assembling a precursor block; infiltrating to grow a single-domain rare-earth barium copper oxide superconducting ring; and permeating oxygen. The technology for preparing the single-domain rare-earth barium copper oxide superconducting ring by the bottom seeded infiltration growth method can be used for infiltrating the liquid phase in the liquid-phase source precursor block and ensuring growth of the single-domain rare-earth barium copper oxide superconducting ring, so that the ring superconductor preparing process can be greatly simplified, the possibility of destroying samples in the process of processing a bulk superconductor into a ring superconductor can be avoided, and the macroscopic growth morphology of the upper surface of the ring superconductor after growth is completed can be directly observed.