NOVELTY - Producing bio-organic fertilizer involves culturing Trichoderma, Rhizopus oryzae and Rhizopus nigricans in potato dextrose agar and potato dextrose broth to obtain culture liquid; inoculating in bran-glucose medium, and fermenting to obtain fermentation liquid; mixing farm manure raw material with the fermentation liquid and fermenting to obtain fermentation material; then adding chitin, urea, calcium sulfate, dipotassium hydrogen phosphate trihydrate, attapulgite, cellulose, sodium carboxymethyl cellulose, ethyl cellulose and mixing to obtain the fertilizer.    USE - For producing bio-organic fertilizer (claimed).    ADVANTAGE - The method prepares bio-organic fertilizer which is rich in nutritional and microbes, that has high pathogen inhibition rate, higher cucumber blight controlling effect, and provides long term protection.    DETAILED DESCRIPTION - Producing bio-organic fertilizer involves culturing Trichoderma pseudokoningii (TRIPI), black Rhizopus oryzae and Rhizopus nigricans in potato dextrose agar (PDA) culture medium; then culturing in potato dextrose broth (PDB) culture medium to obtain culture liquid; inoculating the liquid culture in bran-glucose medium, and fermenting to obtain fermentation liquid; drying and crushing farm manure raw material, adding 30-50 wt.% water, mixing uniform, then adding 1.5-5 wt.% farm manure raw material in the fermentation liquid, mixing uniform, material stack to ferment for 3-5 days to obtain TRIPI, black Rhizopus oryzae and Rhizopus nigricans fermentation material; adding 0.02-0.05 wt.% chitin, 7-8 wt.% urea, 0.5-1.5 wt.% calcium sulfate, 5-12 wt.% dipotassium hydrogen phosphate trihydrate, and 1-5 wt.% attapulgite to the fermentation material; mixing uniform, and then adding 1-5 wt.% cellulose, 1-5 wt.% sodium carboxymethyl cellulose, 1-5 wt.% ethyl cellulose, and mixing to obtain bio-organic fertilizer. The bran-glucose culture medium comprises 20 per liter glucose, 50-70 g per wheat bran, 18-20 per liter agar, and balance water.