Single-side surface layer compressed wood and preparation method thereof

The invention discloses a single-side surface layer compressed wood and a preparation method thereof. The single-side surface layer compressed wood comprises a peak density layer, a dense layer and awood original density layer, wherein the connection between the peak density layer, the dense layer and the wood original density layer is a natural connection of wood fibers of the wood; the preparation method of the single-side surface layer compressed wood comprises the following steps that a hot pressing plate on a press machine is heated to 150-220 DEG C, and the wood is laid on a cold pressing plate after the wood is dried; the upper surface of the hot pressing plate and the upper surface of the wood are in contact and pre-heating; under the pressure of 6-15 Mpa, the pressure is maintained after the wood is compressed to the required thickness; at the temperature of 150-220 DEG C, the pressure is maintained after reducing the pressure to 1-3 Mpa; and the single-side layer compressedwood and the preparation m