Silkworm excrement fermented powder, and preparation method and application thereof

The invention provides silkworm excrement fermented powder, and a preparation method and application thereof. The preparation method comprises the following steps: drying cow dung subjected to pile fermentation for 20-30 days, grinding the cow dung into dry cow dung powder, and then mixing the following raw materials to obtain the silkworm excrement fermented powder: 5-8 parts of sodium bicarbonate, 10-20 parts of biphasic calcium phosphate powder, 10-20 parts of calcium sulfate powder, 20-30 parts of the dry cow dung powder and 0.01-0.2 part of enterococcus faecalis; the silkworm excrement fermented powder is used in a harmless fermentation treatment process of silkworm excrement and is cooperatively used with a microbial agent to respectively obtain a plant fertilizer and an animal feed, and preparation methods of the silkworm excrement fertilizer and the animal feed are very similar and are very easily mastered and actually promoted by farmers.