The invention discloses an innocent treatment system for livestock and poultry dead of diseases in the livestock breeding industry. The innocent treatment system comprises a material conveying and sterilizing device, a drying and smashing device and a control device. A belt conveyor is connected with a parallel guide rail, and materials are conveyed to a high-temperature high-pressure sterilization reaction still through a steam-curing trolley. A traction mechanism drags the steam-curing trolley to do reciprocating motion on the parallel guide rail. The high-temperature high-pressure sterilization reaction still is in seamless connection with the parallel guide rail through a deflection mechanism. A lifting and turnover mechanism is used for completing lifting and turnover material pouring of the steam-curing trolley. A coarse crusher is connected with a mixing and stirring machine through a screw conveyor, the mixing and stirring machine is connected with a dryer, and a fine crusher is connected with the dryer through a mesh belt conveyor. Curing innocent treatment is carried out on the livestock and poultry dead of diseases, pathogene viruses are killed from the source, squeezing is carried out based on the fat separation technology, industrial oil is separated, organic matter is made into high-quality organic fertilizer, production efficiency is improved for animal husbandry, and the innocent treatment on the livestock and poultry dead of diseases is achieved.