Rigidity performance testing machine

The invention provides a rigidity performance testing machine. The rigidity performance testing machine comprises a first loading unit, a second loading unit, a torsion unit, a measuring unit and a control unit, according to the rigidity performance testing machine, through independent control of the first loading unit, the second loading unit and the torsion unit, three kinds of rigidity measurement under the coupling condition can be completed through combination of the first loading unit, the second loading unit and the torsion unit, and the first loading unit is provided with a placing position used for placing a spherical elastic bearing. The measuring unit can measure an axial load, a radial load, a torque and a torsion angle which are measured by a photoelectric encoder at a motor end, and also can measure axial and radial deformation of the elastic bearing. The method can accurately evaluate the mechanical properties of the spherical metal-rubber elastic bearing when the spherical metal-rubber elastic