The invention relates to a cone friction pair performance testing machine belonging to the testing technology field and aiming at solving the technical problem that the prior cone friction pair performance testing machine can not directly obtain the friction coefficient and other data of the cone friction pair. The cone friction pair performance testing machine comprises a stand, a driving component, a measuring component and an inertial component; the stand comprises a flat plate 1, a slide plate 2 and a guideway arranged between the flat plate 1 and the slide plate 2; the driving component comprises a rolling lead screw mechanism, a synchronous pulley 6, a numerically controlled motor 5, a thrust transducer 14 and a connecting seat 46; the measuring component comprises a displacement transducer 16 and a torque transducer 19; and the inertial component comprises a pulley seat 40, a V-shaped pulley, an inertial shaft 31, an inertial wheel 38 and a velocity transducer 43. The inventionis suitable for testing the material and the finished product of an automobile synchronizer gear ring friction pair.