To provide a feather pattern material processing apparatus that realizes the reduction of the whole cost and the speed up of processing work.

An inside small diameter circular saw 16 and an outside large diameter circular saw 18 are coaxially arranged on the rotary shaft of the general-purpose motor 12, which is arranged through the servomotor 22 attached to an arm 21 in a freely positionally controllable manner, in a freely detachable manner under arranging relationship leaving a predetermined interval and the small and large diameter circular saws 16 and 18 are properly used under a short stroke. In this case, it is desirable to coaxially arrange the small and large diameter circular saws 16 and 18 so as to interpose a spaced apart distance determined by the relation of a feather pattern material to be processed with a size.