According to the characteristics of food waste, select specific microbial strains, which use food waste as nourishment, When food waste is put into the biochemical bin and stirred evenly with the bacteria, the bacteria will release a large amount of enzymes to decompose the long-chain high-molecular organic matter into short-chain low-molecular organic matter such as sugar, fatty acid and amino acid. Microbial bacteria use this as nutrients to metabolize a small amount of water, biothermal energy and carbon dioxide gas. At the same time, microbial bacteria multiply rapidly in a geometric progression, and can continue to "eat" the newly input food waste over and over again. During its reproduction, food waste is degraded through the action of biological enzymes. The biochemical bin provides rapid growth conditions with constant temperature and humidity to accelerate the degradation rate. The degradation rate is higher than the national standard ≥ 98%, and finally degraded into water, heat energy, carbon dioxide and other forms of emission.