NOVELTY - Biomass carbon is produced from agricultural and forestry waste by drying biomass waste for 2-4 hours at 105 degrees C, carbonizing for 6-9 hours at 500-600 degrees C to obtain carbonized substance; crushing and screening carbonized substance through a sieve of 50 meshes to obtain carbonized powder of biomass waste; uniformly mixing the carbonized powder with binder, combustion improver, smoke suppressor and water to obtain mixture; placing mixture into a carbonizing furnace, igniting a fire, and allowing material to remain in the furnace for 3-5 hours for aging; and pressing to obtain the product.    USE - Method of producing biomass carbon from agricultural and forestry waste (claimed).    ADVANTAGE - The method applies an internal-heating carbonization mode so as not to produce waste gas during carbonization process; and applies atomized water to stop the carbonization process so as not to produce contaminant to environment. Further, the method has short carbonization time without igniting open fire and without using mechanical high-temperature carbonization, to carbonize the biomass with high carbonization rate and high carbon content. Thus, the method is capable of obtaining biomass carbon with easy ignition, sufficient combustion, and great heat release, which is free from smoke, toxin and odor.    DETAILED DESCRIPTION - Production of biomass carbon from agricultural and forestry waste comprises:    (A) providing raw materials comprising (pts.wt.) biomass waste (80-120), binder (48-72), water (64-96), combustion improver (8-12), and smoke suppressor (2-16);    (B) drying biomass waste for 2-4 hours at 105 degrees C, carbonizing for 6-9 hours at 500-600 degrees C to obtain carbonized substance of the biomass waste;    (C) crushing and screening carbonized substance through a sieve of 50 meshes to obtain carbonized powder of the biomass waste;    (D) uniformly mixing the carbonized powder with the binder, the combustion improver, the smoke suppressor and water to obtain mixture;    (E) placing mixture into a carbonizing furnace, igniting a fire, and allowing material to remain in the furnace for 3-5 hours for aging; and    (F) pressing to obtain the product.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the carbonizing furnace.    Inner furnace (1)    Funnel (2)    Air door (3)    Vent holes (4)    Outer furnace (5)    Igniting ports (6)