Depilation method of animal skin

A depilation method of animal skin is to firstly add the animal skin into a rotary drum or a paddle vat, and add 100-300wt% of water and 0.1-0.5wt% of a degreasing agent, rotate, pour the water out; add 100-300 wt% of water, 0.1-2 wt% of a basifying agent, 0.1-0.5 wt% of a Wetting Agent, 0.1-0.5wt% of a degreasing agent, 0.1-1 wt% of a first composite protease, and 0.1-1 wt% of a lipase, rotate; add 0.05-0.3 wt% of a sterilizer, rotate; intermittently rotate for 5-24 hours, pour the water out; add 30-300 wt% of water, 0.1-3 wt% of non-sulfide depilatories, 0.1-0.5 wt% of a degreasing agent, 0.1-1 wt% of a second composite protease, and 0.1-1 wt% of lipase, rotate; intermittently rotate to add 0.2-2 wt% of sodium hydroxide twice or four times while in rotation; add 0.3-1.8 wt% of sodium sulfide, rotate, stop; intermittently rotate, add 0.5-3 wt% of sodium hydroxide twice or five times while in rotation; and add 30-150 wt% of water, pour the water out. The method of the present invention can conventionally redu