Measuring the integrated parameters of a tapping machine spindle enables the adjustment and optimization of machining processes. In this article, a novel integrated nondestructive dynamic parameter measurement mechanism that can monitor the motion of tapping machine spindle rotations, circumferential oscillations, and axial feeds is proposed. The proposed method includes the following two contributions: 1) a suitable mechanical contour profile and motion conversion mechanism that can convert rotational, circumferential oscillatory, and axial feed transient complex angular motions is designed and 2) an improved variational modal decomposition algorithm is proposed to demodulate and analyze the composite modulated signal to obtain the integrated motion parameters. Finally, a prototype of the complex motion of the spindle test without a load and a reciprocating tapping machine is used for experimental verification. The results indicate that the integrated parameter measurement mechanism provides positive performance in terms of the measurement accuracy and dynamic response. Moreover, the average measurement accuracy can reach 99.12%.