This paper presents (1) Position and spindle performance optical measurement system,(2) Space tapping behavior simulation measurement system. The position and spindle performance optical measurement system, low cost, which can measure three-axis positioning performance tapping machine. The experimental results show the positioning repeatable accuracy of the tapping machine is ± 2.1μm of X-axis ±2.6μm of Y-axis and ± 3.5μm of Z-axis at F200. Spindle measured average percentage error 3% rpm with tachometer. Space tapping behavior simulate measurement system is research to common materials of processing parameters for tapping, drawing immediately after application to retrieve information, and tapping a path of simulation accuracy than the error, the results showed that the maximum percentage error of 11.6% of the speed, radius ± 40μm, pitch error of ± 8μm.