The invention belongs to the technical field of livestock and poultry processing, and in particular relates to a clean production process for simultaneously extracting lipid and collagen from animal fat tissues. The clean production process provided by the invention is simple, convenient and efficient, is low in cost and high in added value and is used for processing and utilizing the animal fat tissues, and by using the process, collagen can be industrially extracted from the animal fat tissues on a large scale, and animal fat can be obtained at the same time. Compared with the prior art, by using the process provided by the invention, the animal fat tissues are used as a raw material for extracting collagen, high-quality collagen and animal fat can be obtained on the premise that wastewater is not generated, green and clean utilization of the animal fat tissues are realized, a big pollutant source of the livestock and poultry processing industry is eliminated, and meanwhile, the added value of the animal fat tissues is also greatly improved, so that the clean production process has a wide application prospect in the field of livestock and poultry processing.