The leather cutting assembly line system adopts an advanced high-definition full-color leather contour acquisition system, which extracts irregular contour shape, area, defects and other information of leather through high-precision scanning. Combined with a fully automatic discharge system, it produces optimized cutting solutions. The unique three-stage flow work platform can maximize cutting efficiency, reduce labor intensity, and improve comprehensive energy efficiency. The cutting efficiency is more than 120% higher than traditional leather cutting equipment.