The fermentation pot uses the decomposition of microorganisms in nature, and the activity of aerobic microorganisms is used to decompose organic materials through continuous aerobic fermentation in a closed fermentation pot. High temperature is generated by itself to decompose the materials, and deodorize and kill the harmful substances such as protozoa, parasites and bacteria, etc. the moisture content and volume of the material are reduced, and the organic fertilizer with a large amount of nutrients is finally produced.