The invention relates to the technical fields of materials, structural test equipment and structural test methods, in particular to a tension-torsional fatigue test stand. The tension-torsional fatigue test stand comprises a bracket, a test piece to be tested, and a loading device, wherein the test piece to be tested comprises at least one first end and at least one second end; the loading device comprises at least one first loading device corresponding to and connected with the at least one first end, and at least one second loading device corresponding to and connected with the at least one second end; each first loading device is used for twisting the corresponding first end of the test piece to be tested, and is used for fixing the first end along the axial direction; the first loading devices are arranged on the bracket; each second loading device is used for tensioning the corresponding second end of the test piece to be tested, and is used for fixing the second end along the circumferential direction; the second loading devices are arranged on the bracket. The tension-torsional fatigue test stand provided by the invention is simple in structure and lower in energy consumption, and can be used for carrying out a tension test and a torsion test on the test piece at the same time.