The invention relates to the technical field of making technologies of leather, and provides a making technology of natural dry milled leather. The making technology of the natural dry milled leather shortens the production time, improves the plumpness and uniformity of the pattern of the natural dry milled leather and enlarges the application range of leather sources through physical technologies. The making technology of the natural dry milled leather comprises the following steps: preparing wet blue leather, selecting, squeezing and spreading, weighing, returning the wet blue leather to a drum and immersing the wet blue leather in water, squeezing and spreading, carrying out vacuum treatment, drying, rinsing and neutralizing, carrying out closed washing, filling and dyeing, fatliquoring, carrying out color processing, washing by using water and discharging the obtained leather from the drum, carrying out stacking standing, squeezing and spreading, carrying out vacuum treatment, naturally hanging for airing, spraying water to regain moisture, standing, carrying out vibration softening, milling, and finishing.