The invention discloses a centrifugal pump water deflector leather cushion, and relates to the technical field of centrifugal pump parts. The centrifugal pump water deflector leather cushion is prepared from, by weight, 75-80 parts of butyl rubber, 15-20 parts of fluorocarbon resin, 10-15 parts of polyethylene wax, 10-15 parts of mineral powder, 8-11 parts of fumed silica, 6-10 parts of carrageenan, 6-10 parts of epoxidized soybean oil, 5-8 parts of sodium dodecyl sulfate, 4-7 parts of calcium stearate, 3-5 parts of glycerin monostearate, 3-5 parts of sodium N-dimethyl-dithiocarbaminate and 2-3 parts of tributyl citrate. The leather cushion is excellent in mechanical performance, good in sealing performance, and capable of improving pump shaft sealing performance and preventing leakage of conveyed materials after being used in cooperation with a water deflector, thereby improving production safety.