Flame-retardant heat-insulation decorative wood board

The utility model discloses a flame-retardant thermal-insulation decorative wood board which comprises a surface decorative layer, a flame-retardant surface layer, an upper thermal-insulation layer, aflame-retardant core layer, a lower thermal-insulation layer and a flame-retardant bottom layer which are sequentially arranged from top to bottom, the flame-retardant surface layer and the flame-retardant bottom layer comprise veneers and flame-retardant parts, and the surface decorative layer comprises a bottom film layer, a printing layer and a wear-resistant layer. The flame-retardant core layer comprises an upper layer body and a lower layer body; each of the upper layer body and the lower layer body comprises a plurality of layers of laminated flame-retardant veneers; protruding platesand groove bases are arranged on the lower surface of the upper layer body and the upper surface of the lower layer body in a staggered mode, first flame-retardant cavities are formed in the protruding plates, second flame-ret