NOVELTY - Method for producing bio-organic fertilizer for bananas, involves inoculating banana specific growth promoting antagonistic Bacillus NJN-6 CGMCC 3183 into potato dextrose agar (PDA) culture medium, performing liquid fermentation, uniformly mixing chicken manure compost and algal mud, inoculating the liquor into the obtained mixture for solid fermentation, performing solid fermentation, turning the pile for 1 time/day, raising the temperature to evaporate water to make the water content less than 30%, and packing the obtained fertilizer.    USE - The method is useful for producing bio-organic fertilizer for bananas, used for promoting growth of banana and preventing and controlling vascular wilt in banana (claimed).    ADVANTAGE - The prepared bio-organic fertilizer provides germination index of 98% or more, and has viable count of more than 1x 108 cfu/g, organic matter content of more than 45%, organic nitrogen content of 2.5-3.5%, water content of 25-30%, microcystins LR and RR content of less than 4 mu g/kg and total nitrogen-phosphorus-potassium content of 6-8%.    DETAILED DESCRIPTION - Method for producing bio-organic fertilizer for bananas, involves (a) inoculating banana specific growth promoting antagonistic Bacillus NJN-6 CGMCC 3183 into potato dextrose agar (PDA) culture medium and performing liquid fermentation at pH 6-7.5, 30-35 degrees C and 180-300 revolutions/minute (rpm) for 48 hours, where the fermentation broth comprises greater than or equal to 1x 1010 bacterial spores/ml, and 1 l PDA culture liquid is prepared by peeling and cutting 200 g potatoes into small pieces, boiling the potato pieces in water for 30 minutes, filtering the solution, adding 20 g common sucrose, making the volume of the solution to 1000 ml, adjusting pH to 7.2-7.4 and sterilizing the obtained culture liquid at 121 degrees C for 20 minutes, (b) uniformly mixing 10 wt.% manure compost and 7 wt.% algal mud, and (c) inoculating the antagonistic bacterial fermented liquor into the above obtained mixture for solid fermentation, where 50 l fermented liquor is added to 1 ton solid organic material, performing solid fermentation, turning the pile for 1 time/day, ensuring that the solid fermentation temperature does not exceed above 50 degrees C, performing fermenting for 7 days till the functional bacteria content reaches more than 1x 108 colony forming units (cfu)/g, raising the temperature to not greater than 60 degrees C to evaporate water to make the water content less than 30%, and packing the obtained fertilizer, where the germination index is 98% or more, the mass ratio of organic matter content is more than 45%, organic nitrogen content is 2-3%, and water content is 25-30%.