provided are : a sliding plate , the thickness and performance of which can be easily adjusted ; and a floor plate for a turnout , using the sliding plate . a sliding plate is provided with a backing material comprising a steel plate or the like , a punching metal disposed on the backing material , and a sintered meal powder layer formed on the upper surface of the backing material so as to cover the punching metal . the sintered metal powder layer is formed by subjecting an alloy powder for sintering to sintering and rolling , and is impregnated with a lubricating resin through heat melting . the sintered metal powder layer formed on a metal area of the punching metal has undergone high - pressure compression and therefore exhibits a high sintered density and excellent resistance to impact , load and wear . meanwhile , the sintered metal powder layer formed in empty spaces of the punching metal has undergone low - pressure compression and therefore exhibits a low sintered density and a high impregnation rate of the lubricating resin , thus attaining excellent lubrication .