The design of the shea nut decorticating machine was carried-out based on the physical properties of the nut. The measurements of major, intermediate and minor diameters from an average of 100 nuts, were 0.037 mm, 0.027 mm and 0.025 mm respectively. The mechanical properties, the power required and cost-effectiveness of the machine were considered. The decorticator was designed to effectively decorticate Shea nuts with little energy. The rotating shaft of the machine has rubber beaters arranged at an angle of 450 and located inside the cylinder. It has an output capacity of 10.4???????? and capacity of the hopper at full load is 6.5 ????. The machine capacities in volume per hour and in mass per hour are 2.385 m3/hr and 1420.506 kg/hr respectively. The cylinder diameter is 0.162 m, and the power required to decorticate 6.50 kg of shea nut is 0.531 kw. Although the machine is motorized, its constructional materials can be affordable by the populace, both Shea butter producers and whole kernel exporters. Keywords: Shea Nut, Decortication, Parboiling, Machine