NOVELTY - Treatment of dead animal involves successively performing step (1) of performing surface disinfection by using high-temperature steam, contacting steam and dead animal body to completely kill pathogens, and allowing dead animal body to age into paste in which high temperature is 160 degrees C, pressure is 0.6 MPa, and processing time is 2-3 hours, and step (2) of performing pulverization and animal fat recycling by pulverizing paste of dead animal body into fine particles, isolating animal fat by water extraction, and recycling fat into industrial products.    USE - Treatment of dead animal.    ADVANTAGE - The method is safe to carry out and is environmentally friendly.    DETAILED DESCRIPTION - Treatment of dead animal involves successively performing step (1) of performing surface disinfection by using high-temperature steam, contacting steam and dead animal body to completely kill pathogens, and allowing dead animal body to age into paste in which high temperature is 160 degrees C, pressure is 0.6 MPa, and processing time is 2-3 hours, step (2) of performing pulverization and animal fat recycling by pulverizing paste of dead animal body into fine particles, isolating animal fat by water extraction, and recycling fat into industrial products, step (3) of performing anaerobic fermentation by crushing dead animal body residue, performing oil-water separation, adding water to dilute, adjusting solid content to 6-8%, mechanically stirring, mixing pulp, controlling temperature to 35 plus minus 1 degrees C, and performing anaerobic fermentation to produce biogas, step (4) of performing gas desulfurization by placing biogas in desulfurization unit, drying, using part of dehydrated biogas as fuel for heating boilers and gas boilers, and using another part of dehydrated biogas for power generation and electricity delivery, step (5) of performing secondary fermentation of digestate by subjecting digestate from step (3) to anaerobic secondary fermentation, removing smell, and using for vermiculture, and step (6) of growing crops by using vermicompost of vermiculture as organic fertilizer for planting okra or other crops.    DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart of the method of treating dead animal. (Drawing includes non-English language text).