NOVELTY - The method comprises preprocessing straw, breaking the rice straw to obtain a straw powder, preparing compound enzyme liquid, culturing Phanerochaete chrysosporium in liquid stage to obtain the compound enzyme liquid, and catalyzing and degrading the mixture, adding the compound enzyme liquid into the straw powder, adding a concentration of veratryl alcohol solution (80-100 mm/l), oxalic acid solution (600-800 mm/l) and hydrogen peroxide solution (500-600 mm/l), insulating the mixture, and moisturizing and stewing the mixture to finish catalyzing and degrading the product.    USE - The method is useful for accelerating compound enzyme to catalyze and degrade rice straw.    ADVANTAGE - The method is capable of simply and economically accelerating the compound enzyme without any pollution.    DETAILED DESCRIPTION - The method comprises preprocessing rice straw, breaking the rice straw to obtain a straw powder, culturing Phanerochaete chrysosporium in liquid stage to obtain compound enzyme liquid, catalyzing and degrading the mixture, adding the compound enzyme liquid into the straw powder, adding veratryl alcohol solution (80-100 mm/l), oxalic acid solution (600-800 mm/l) and hydrogen peroxide solution (500-600 mm/l), insulating the mixture at 28-30 degrees C for 3-24 days, moisturizing and stewing the mixture for catalyzing and degrading the product. The dosage of compound enzyme liquid, veratryl alcohol solution, oxalic acid solution and hydrogen peroxide solution in per g of straw powder is 1200-3600 ml, 200-800 ml, 50-200 ml and 312.5-1250 ml respectively. The sieve hole size for sieving the straw powder is 60-100 meshes. The compound enzyme liquid is obtained by culturing Phanerochaete chrysosporium in liquid stage, adding 2-4 ml of Phanerochaete chrysosporium suspension with concentration of 1.5x 106-2\106/ml in 200 ml of liquid culture medium, and culturing the liquid state at 30-37 degrees C and a rotation speed of 120-150 revaluation per minutes for 6-8 days.