The invention discloses a novel method of the harmless treatment and utilization of 
livestock and poultry which died of 
disease according to the steps as follows: firstly, various kinds of the animal bodies of the 
livestock and the poultry which died of 
disease are collected; secondly, the animal bodies are crushed; thirdly, the crushed animal bodies are sterilized under high temperature and highpressure and separated for filtering, the material of oil and fat flows into a cooling 
pool, and the material of hair and bone is dried; fourthly, the material of hair and bone after 
drying is carbonized; fifthly, the material of oil and fat after cooling is added with catalyst, high-efficiency compound 
microorganism, trash, organic 
wastewater and 
sludge; sixthly, the mixed organic material is put into an anaerobic 
tower to be fermented, and then 
biogas, 
biogas slurry and 
biogas slag are processed for three-phase separation; seventhly, the biogas is used for burning and generating 
electricity; eighthly, the biogas 
slurry inside a 
fertilizer storing 
pool is used as farmland 
fertilizer; ninthly, the biogas 
slag is added with the high-efficiency compound 
microorganism and the catalyst for secondary ferment; tenthly, the material after the secondary ferment is made into agricultural high-efficiency 
organic fertilizer. The invention solves the problem of the environmental 
pollution caused by the 
livestock and poultry which died of 
disease and change the waste livestock and poultry which died of disease into valuables.