HSK taper comparative measuring method

The invention relates to an HSK taper comparative measuring method. The conventional taper comparative measuring instrument has a large number of defects. HSK is a tool holder provided for a high-grade machine tool cutting at a high speed, and is popularized rapidly due to the excellent properties on the aspects of rigidity, radial circle run-out accuracy, repeated mounting accuracy and tool service life. An HSK taper comparative measuring instrument comprises a large-diameter ring gauge (1), a small-diameter ring gauge (3), a standard plug gauge (2), an inductive transducer (4) and an electric box (7), wherein the standard plug gauge is connected with the large-diameter ring gauge and the small-diameter ring gauge respectively; the inductive transducer is connected with the large-diameter ring gauge and the small-diameter ring gauge; the lower end of the inductive transducer is fastened through a fastening screw (6); the fastening screw is used for fastening a fixed support point; the cable joint of the indu