Abstract: A processing device for coffee beans to undergo a de-husking, bean-halving, membrane removing and roasting device to proceed with a de-husking, bean-halving, membrane removing and roasting step of coffee beans, wherein the de-husking, bean-halving and membrane-removing device comprises: a first beating mechanism having a plurality of rotating blades with hard rubber at the surface thereof to beat and remove the dried husk, flesh and inner skin of coffee beans; a second beating mechanism having a plurality of rotating blades with soft rubber at the surface thereof to beat and remove the silvery skin of the inner layer of the bean; a first separating mechanism mounted with a lower for separating the coffee bean from skin and debris; and the roasting device including a rolling container mounted with a spiral conductive plate and a burner at the bottom section of the rolling container for roasting of coffee beans after the coffee beans have been de-husked, halved and membrane-removed for appropriate stiring for e