The invention discloses a rubber joint for a rail vehicle oil pressure damper. The rubber joint comprises a coat layer, a rubber layer and a central spindle. The middle portion of the central spindle is sleeved with the rubber layer, the rubber layer is closely bonded with the central spindle, the rubber layer is sleeved with the coat layer, the section of the contact surface of the coat layer and the rubber layer is rectangular, and the side face of the rubber layer is in a concave arc shape. A rubber formula of the rubber layer comprises, by mass, 80-90 parts of natural rubber, 10-20 parts of synthetic rubber, 0.6-1 part of sulfur, 0.8-1.2 parts of benzothiazole-2-thiol, 2.2 parts of 2,2'-dithio-dibenzo thiazole, 0.8-1.2 parts of diphenyl guanidine, 0.4-0.8 part of hexamethylene tetramine, 4-8 parts of hardening resin, 3 parts of zinc oxide, 1 part of stearic acid, 1 part of N-phenyl-N'-cyclohexyl-P-phenylenediamine, 1 part of 2-benzothiazolethiol, 1 part of poly(1,2-dihydro-2,2,4-trimethylquinoline), 1 part of paraffin and 30-50 parts of carbon black. The rubber joint with the rubber layer produced through the formula has strong torsion, radial rigidity, axial rigidity, deflection rigidity and torsion rigidity, and is high in product performance and long in service life.