NOVELTY - Microbial inoculum for reinforcing and promoting organic fertilizer compost fermentation process comprises Bacillus subtilis (CGMCC1.775), Bacillus licheniformis (CGMCC1.91), Rhodopseudomonas palustris (CGMCC1.2181), Saccharomyces cerevisiae (CGMCC2.1) and Candida tropicalis (CGMCC2.563) with a ratio of 1:1:1:1:1.    USE - The microbial inoculum is used for reinforcing and promoting organic fertilizer compost fermentation process (claimed).    ADVANTAGE - The microbial inoculum has a high effective colony count, strong adaptability, eliminates odor and used for rapid composting process.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is a method for preparing the microbial inoculum by (a) activating the inclined strain stored in refrigerator at 2-4 degrees C, carrying out test tube-shaking culture; culturing B. subtilis, B. licheniformis, and R. palustris by beef extract peptone culture medium, where the beef extract peptone culture medium comprises 5 g beef extract, 10 g peptone, 5 g sodium chloride, 1000 ml distilled water; and pH is 7.2-7.4 of pH value; culturing S. cerevisiae and C. tropicalis using a potato sucrose culture medium, where the potato sucrose culture medium comprises 200 g potato without peel and residue, cutting or slicing, boiling by 1000 ml tap water at 80-100 degrees C for 30 minutes, filtering to obtain 1000 ml filtrate, replenishing the insufficient part by tap water, adding 20 g cane sugar, adjusting to natural pH value, sterilizing culture medium under 0.1 MPa and 121 degrees C, sterilizing for 30 minutes, inoculating, shaking in 150-200 revolutions per minute (rpm), culturing at 28-30 degrees C for 24-48 hours; (b) mixing strain sub-liquid seeds in the shaking bottle culture medium, proceeding a secondary amplification culture, using 30 l fermentation tank and expanding culture to corn-soybean meal, where the corn-soybean meal culture medium comprises 30 g corn, 20 g soybean meal, 10 g potassium nitrate, 0.5 g magnesium sulfate, 0.5 g potassium, 0.5 g sodium chloride, 0.001 g ferrous sulfate, 1000 ml tap water, adjusting pH value at 7.4-7.8 by hydroxide calcium, sterilizing the culture medium under 0.1 MPa and 121 degrees C, sterilizing for 30 minutes, inoculating amount according to the mass percentage is 5-10%, stirring at 300 rpm, where the ventilation volume is 6-8 l/minute, culturing for 20-24 hours at 28-30 degrees C; (c) proceeding an amplification culture by three-grade liquid, using 300-l fermentation tank, expanding culture medium, where the inoculation quantity is 5-10%, stirring at 200 rpm in 10-15 l/minute air ventilation, culturing at 28-30 degrees C for 20-24 hours; (d) using grass carbon as carrier to grass peat to third level liquid culture for treating bacteria liquid adsorbed and immobilized for 4-5 times; and (e) sealing in the bag for lining polyethylene, reserving at normal temperature, avoiding exposing or high temperature or moisture, where the quality guarantee period is 1 year.