The invention relates to an all-steel radial tyre bead chafer, and a preparation method thereof, and belongs to the technical field of rubber. The preparation method comprises following steps: naturalrubber, high cis butadiene rubber, low cis butadiene rubber, carbon black, an anti-aging agent, a tackifying resin, aramid staple fiber, a rubber filling oil, zinc oxide, stearic acid, a protective wax, a promoter, sulfur, an anti-reversion agent and an anti-scorching agent are subjected to first-stage mixing, second-stage mixing, and third-stage mixing so as to obtain the all-steel radial tyre bead chafer. The preparation method is capable of improving the high temperature aging resistance, wear resistance, flexing resistance, and cure reversion resistance of bead chafer of tyres in using process, reducing bead chafer heat generation, and prolonging the service life of tyres.