Harmless biodegradation agent and preparation method thereof

The invention discloses a harmless biodegradation agent and a preparation method thereof. The harmless biodegradation agent is prepared from the following raw materials in parts by weight: 150-400 parts of corn flour, 10-50 parts of soybean meal, 20-80 parts of bran, 5-30 parts of glucose, 20-50 parts of saccharose, 1-5 parts of a bacillus thermophilus solution, 0.5-5 parts of a thermophilic lactic acid bacteria solution, 0.5-5 parts of a yeast solution, 0.5-5 parts of an actinomycetes solution and 0.5-3 parts of a biological enzyme additive. The harmless biodegradation agent provided by the invention is simple and practical in process, and has good decomposition effect on dead animals; after livestock and poultry die of diseases are fermented by the harmless biodegradation agent, the whole body is decomposed and fully mixed with fermented raw materials, and a produced bio-organic fertilizer or bio-protein powder is a good organic fertilizer, which can promote a virtuous cycle of agricultural and animal husba