Sintering bearing plate for sintering kiln, and preparation method of sintering bearing plate

The invention discloses a sintering bearing plate for a sintering kiln, and a preparation method of the sintering bearing plate. The sintering bearing plate structurally comprises a substrate, a transition layer covering the surface of the substrate, and a spraying surface layer covering the surface of the transition layer, wherein the substrate comprises the following components by weight percentage: 20-30% of andalusite, 30-45% of corundum, 20-30% of alumina micropowder, 5-10% of kaoline and 1-2% of binding agent; the transition layer comprises the following components by weight percentage: 60-80% of yttria-stabilized zirconia and 20-40% of alumina; and the spraying surface layer is yttria-stabilized zirconia. According to the sintering bearing plate for the sintering kiln, a material of the substrate is adjusted and the transition layer is sprayed before the surface layer and the substrate are sprayed, so that the adhesion between the material layers is improved obviously, and each thermal expansion coeffi