A machine tool metering parallel comprises a parallel base, a wedge, a lower seat pad, an upper seat pad and an adjusting bolt, wherein the outer end of the adjusting bolt is arranged on the sidewall of the parallel base, the inner end is rotatablely arranged in the bolt of the sidewall of the wedge, an inclined plane is arranged on the bottom surface of the inner cavity of the parallel base, the inclined plane is provided with a groove, the upper end face of the wedge is a plane and the lower end face is an inclined surface provided with a boss I, the wedge is arranged on the inclined plane of the parallel base, the boss I is arranged in the groove; a seat pad base is arranged on the upper end face of the wedge, an upper parallel is arranged in the cavity of the seat pad base, the upper seat pad is above the lower seat pad, the arc convex of the low end face of the upper seat pad is matched with the arc concavity of the upper end face of the lower seat pad; in addition, through holes used for passing a foundation bolt through are arranged in the middles of the parallel base, the wedge, the seat pad base, the upper seat pad and the upper seat pad. The machine tool metering parallel of the invention can be used to measure and display the pressure of the parallel and provide reliable technical data for debugging and installing the machine tool.