PURPOSE: To provide a grinding machine with good grinding efficiency by which the uniformity of grinding in relation to grinding workpiece can be adjusted.

CONSTITUTION: A table 10 as well as grinding workpiece 70 are rotated forcely and a grinding disc 38 is rotated forcely in the same direction. A grinding head 30 as well as a movable body 20 are reciprocated by a reciprocating device 60 and the position of the rotary axial center 35 of the grinding disc 38 is displaced. By pressurizing by approaching motion, the grinding by the grinding disc 38 is carried out uniformly across the entire area in relation to the grinding surface of grinding workpiece 70 by the compound movement of force rotation with reciprocating motion. The grinding head 30 is moved longitudinally by the operation of a position adjusting device 50 and the grinding position by the grinding disc 38 is adjusted. The pitch of the reciprocating motion is adjusted by the operation of the reciprocating device and the reciprocating range and the reciprocating position of the grinding disc 38 are adjusted.