Arm type three-dimensional measuring machine and inclination correction method of base part for supporting arm type three-dimensional measuring machine

The invention relates to an arm type three-dimensional measuring machine and an inclination correction method of a base part for supporting the arm type three-dimensional measuring machine. The arm type three-dimensional measuring machine includes: a multi-jointed arm mechanism comprising a probe in a front end; a processing part for computing a position of said probe; and an inclinometer configured to detect an inclination amount of a base part from a vertical direction in the base part for supporting the multi-jointed arm mechanism, wherein the processing part computes a position of the probe using the base part as a criterion and corrects the position of the probe using the base part as the criterion in a time-series manner based on an output from the inclinometer.