The invention discloses a leakage-stopping thrust bearing, which comprises a back plate arranged on a turbine shaft assembly, a thrust plate, an upper thrust gasket, a thrust bearing and a lower thrust gasket, wherein the thrust bearing is arranged between the upper thrust gasket and the lower thrust gasket; the back plate and the thrust plate are fastened on a middle body through screws; the outer circle concave groove of the thrust bearing is provided with a radial oil inlet hole; oil wedge surfaces of two end faces are provided with axial oil inlet holes; oil return holes staggered away from the axial oil inlet holes are formed in grooves formed in the two end faces; end face of the thrust plate is provided with an oil return groove which is matched with an end face groove of the thrust baring to form an oil return cavity; the end face of the middle body is provided with an oblique oil outlet hole. The way of returning oil in a dispersed way on both sides in the conventional product can be changed, lubricating oil of the thrust bearing is drained intensively and accurately in an enclosed space, and the phenomenon of oil leakage of a booster due to flow or sputtering of the oil around the back plate is avoided.