The invention aims to provide a comprehensive measuring method for detecting roundness, coaxiality and verticality of shaft housing parts quickly and efficiently. The measuring method comprises the following steps: a ball with the diameter larger than the aperture of an inner hole of the shaft housing parts is placed on the inner hole of the shaft housing parts from the upper ends of the shaft housing parts; two supporting points contacted with an outer circle along the circumferential direction of the outer circle are arranged on a support; under the conditions that the outer circle of the shaft housing parts contacts the two supporting points and that the lower end faces of the shaft housing parts contact the surface of the support, the shaft housing parts are turned in one circle; and the roundness, the coaxiality and the verticality of the shaft housing parts are determined by the beat amplitude of a ball center image of the ball measured by a reflection type center measuring instrument.