Test tool capable of preloading torque

The utility model discloses a test tool capable of preloading torque, which comprises a bracket, a ratchet wheel assembly and a torsion assembly, and is characterized in that the ratchet wheel assembly is arranged on the bracket; the torsion assembly comprises a first torsion mounting base, a torsion body and a second torsion mounting base, the first torsion mounting base is rotatably mounted on the side, away from the support, of the ratchet wheel assembly, the first end of the torsion body is fixedly connected with the first torsion mounting base, and the second end of the torsion body is fixedly connected with the second torsion mounting base; one side, far away from the torsion body, of the second torsion mounting seat is provided with a pressing device which can be connected with an output shaft of the to-be-tested piece; the first torsion mounting base can drive the first end of the torsion body to rotate, and the ratchet wheel assembly can limit the rotation angle of the first torsion mounting base to