The invention provides a glue special for carbonized plywood and a preparing method of the carbonized plywood. The glue special for the carbonized plywood is prepared from, by weight, 50-150 parts of phenolic resin, 1-10 parts of melamine, 1-10 parts of silicon powder, 0.05-1.5 parts of boric acid and 4-20 parts of a glue regulating agent. The preparing method of the carbonized plywood comprises the steps of carbonizing plywood, facing plywood and performing flame retardant and fireproof treatment. The carbonized plywood is capable of resisting dampness, mould and corrosion, stable in structure, free of formaldehyde, capable of keeping people warm in winter and cool in summer, and good in worm damage resistance and waterproof performance.