Wood based powdered activated carbon uses high quality sawdust as raw material and is produced by zinc chloride method. It is black, non-toxic tasteless, and has the characteristics of advanced pore structure, large adsorption capacity, fast filtering, and etc. The product is mainly used for decolorization, purification, deodorization, removing impurity in the industries of various amino acids, refined sugar, monosodium, glucose, starch sugar and high pigment solution such as chemical auxiliaries, dye intermediate, food additives, edible oil and drug agents.