NOVELTY - Producing functional microorganism organic fertilizer using food waste, comprises e.g. collecting fresh kitchen waste, carrying out solid-liquid separation to obtain the solid waste and liquid waste, preparing fermentation substrate, inoculating Candida bacteria, Bacillus subtilis bacteria, Lactobacillus bacteria and Aspergillus niger bacteria into fermentation substrate respectively, stirring, adjusting the moisture content, stacking, and carrying out primary fermentation, turning, and inoculating Bacillus subtilis bacteria into fermented product.    USE - The prepared fertilizer is useful for preventing, resisting and treating plant diseases.    ADVANTAGE - The method saves the cost for purchasing culture medium, completely and maximally utilizes food waste, does not cause secondary pollution, immediately propagates the beneficial bacteria in a short time, reduces energy consumption, and shortens substrate decomposition time. The prepared fertilizer has strong practicability and higher value by using the functional strain, maximizes the use values of food waste and is environmentally friendly.    DETAILED DESCRIPTION - Producing functional microorganism organic fertilizer using food waste, comprises (a) collecting fresh kitchen waste, carrying out solid-liquid separation to obtain the solid waste and liquid waste, and removing crushed glass and plastic in the solid waste; (b) preparing fermentation substrate by crushing 35-70 wt.% solid waste, 3-10 wt.% rice shell, 5-15 wt.% straw, 5-10 wt.% cassava slag, 5-10 wt.% plant ash, 3-10 wt.% bagasse, 5-10 wt.% sawdust and 3-10 wt.% furfural dreg, and uniformly mixing to obtain fermentation substrate; (c) inoculating Candida bacteria into fermentation substrate, where the inoculation amount is (0.3-2)x 109 colony forming unit (CFU) according to each kg of fermentation substrate, inoculating Bacillus subtilis bacteria into fermentation substrate, where the inoculation amount is (0.5-2)x 109 CFU according to each kg of fermentation substrate, inoculating Lactobacillus bacteria into fermentation substrate, where the inoculation amount is (0.5-2)x 109 CFU according to each kg of fermentation substrate, inoculating Aspergillus niger bacteria into fermentation substrate, where the inoculation amount is (1-3)x 109 CFU according to each kg of fermentation substrate, uniformly stirring, adjusting the moisture content up to 40-65%, stacking, and carrying out primary fermentation for 3-10 days; and (d) After the completion of primary fermentation, turning, inoculating Bacillus subtilis bacteria into fermented product, where the inoculation amount is (0.3-1.5)x 109 CFU according to each kg of fermented product, inoculating Pseudomonas fluorescens bacteria into fermented product, where the inoculation amount is (0.5-2)x 109 CFU according to each kg of fermented product, inoculating Streptomyces bacteria into fermented product, where the inoculation amount is (0.5-2)x 109 CFU according to each kg of fermented product, adjusting the pH of the fermented product to 6.5-7.5 using calcium hydroxide or dilute hydrochloric acid, adjusting the moisture content up to 35-50%, maintaining the temperature maintained at 50-70 degrees C, turning, carrying out secondary fermentation for 2-7 days, and cold wind drying to obtain the finished functional microbial organic fertilizer.