NOVELTY - Fermenting organic waste comprises controlling oxygen content, temperature, pH value, humidity, organic compound content, and carbon and nitrogen ratio; adjusting the water content in the fermented materials to adjust the oxygen content; and ensuring the oxygen concentration.    USE - Method for fermenting organic waste (claimed).    ADVANTAGE - The method has low cost.    DETAILED DESCRIPTION - Fermenting organic waste comprises:    (A) controlling oxygen content, temperature, pH value, humidity, organic compound content, and carbon and nitrogen ratio;    (B) adjusting the water content in the fermented materials to adjust the oxygen content; and    (C) after the first two methods, if oxygen concentration has not yet reached the appropriate range, starting aerobic fermentation systems aspirated equipment, using an air compressor to ferment material forced ventilation to ensure the oxygen concentration; conversely, if the oxygen concentration is higher than 20%, the amount should be reduced to the objectives and requirements; regulatory requirements fermentation temperature at 35-55 degrees C, elevated temperature if the fermentation temperature is below 35 degrees C and continued to decline, increasing the organic compound content of the fermentation species or directly supplemental oxygen, if the temperature is above 55 degrees C and continuous increased or decreased by the fermentation of organic species for ventilation and cooling; regulatory requirements pH 6-8, if the pH is too high (pH greater than 9), adding an acidic wastes to regulate, if too low (pH less than 4), adding alkali to regulate the waste; if regulation is invalid, sodium hydroxide and hydrochloric acid solution are added to the adjusted dispersion; regulatory requirements in the aqueous fermentation product of 50-60%, if the fermented material with high moisture content of 60% and continued to rise, adding sawdust or open the bottom of the fermentation tank permeation device, the leachate is collected at the bottom of the ways to reduce the moisture content, if the fermentation material moisture content is less than 55%, reducing is continued, spraying the waste liquid on the bottom of the pool corresponding to the fermented materials to increase the moisture content; regulatory requirements ferments organic content of 40-60%, if the organic content is less than 40% and continued to decrease through the adding sawdust, high organic content of crop straw waste regulation, if organic matter content is higher than 60% and continues to rise, then be reduced by the addition of humus; regulatory requirements fermentation products in carbon and nitrogen ratio are (25:1)-(35:1), when fermented material in the carbon to nitrogen (C/N) ratio higher than 35:1, adding human waste, manure, and pig manure to reduce nitrogen ratio adjustment; when fermented material in C/N ratio is less than 25:1, adding sawdust, kitchen waste to increase the carbon content of carbon and nitrogen ratio.