The invention relates to a filling machine bearing material and a preparation method thereof. The bearing material is prepared from following raw materials in parts by weight: 5 to 8 parts of bronze powder, 3 to 6 parts of tungsten carbide, 4 to 8 parts of carbon fiber, 1 to 3 parts of graphite, 2 to 5 parts of epoxy resin, 2 to 4 parts of nano titanium dioxide, 1 to 3 parts of n-propyl methacrylate, 2 to 4 parts of titanium powder, and 1 to 2 parts of titanium oxide. The bearing material has the advantages of high strength and good wear resistant performance; the anti-fatigue performance of the bearing material is improved on the basis that all mechanical performance requirements are satisfied, and the fatigue life is prolonged.