NOVELTY - Producing decolored microbial agent for printing and dyeing waste water dyestuffs, by obtaining sludge, adding sterile water, adding enrichment culture medium, filtering, inoculating filtrate on culture medium, selecting decolored bacterial liquor, cultivating, removing bacteria around decolored ring, inoculating decolored bacteria in sterilized culture solution, laying on rocking bed to produce decolored bacteria, adding starch, potassium dihydrogen phosphate, dipotassium hydrogen phosphate and dyestuffs, inoculating liquid seed and performing aerobic fermentation.    USE - The method is useful for utilizing the alcohol waste water for fermentation to produce biological decolored microbial agent for printing and dyeing waste water dyestuffs (claimed), which is useful for processing industrial waste water, thus protecting environment.    ADVANTAGE - The method is economical and eco-friendly.    DETAILED DESCRIPTION - Method of utilizing the alcohol waste water for fermentation to produce biological decolored microbial agent for printing and dyeing waste water dyestuffs, involves obtaining sludge of waste water pool, adding sterile water (100 ml), stirring uniformly, adding enrichment culture medium, stewing at 28 degrees C for 3 days, filtering the culture solution, inoculating the filtrate on solid culture medium, cultivating for 3 days at 28 degrees C, acclimatizing and cultivating for 5 days at 28 degrees C, further acclimatizing for 2-3 generation, selecting the decolored bacterial liquor, cultivating for 3-5 days at 28 degrees C, removing the bacteria around the decolored ring, inoculating the decolored liquor on the acclimatized solid culture liquid, lining to separate and then obtaining individual decolored bacteria, performing enlargement culturing using the biological decolored bacterial seed, inoculating the individual decolored bacteria in sterilized bacterial culture solution (100 ml), laying on rocking bed at 30 degrees C under 180 rpm for 24 hours to produce the biological decolored bacteria of printing and dyeing waste water dyestuff, adding small quantity of starch (in g/l) (4.0), urea (0.5), potassium dihydrogen phosphate (2.0), dipotassium hydrogen phosphate (5.0), and dyestuffs (50 mg/l-1), adjusting pH to 7.2, inoculating the liquid seed after sterilizing for 30 minutes at 121 degrees C and performing aerobic fermentation for 72 hours at 30 degrees C under 200 rpm.