To investigate the hysteretic performance of X-type welded stud steel-reinforced concrete (SSRC) columns subjected to combined torsion, quasi-static loading tests were conducted on 11 X-type SSRC columns and one staggered SSRC contrast column. The experimental data was analyzed to compare and assess the failure mode, hysteresis curve, inter-story displacement angle, ductility, energy dissipation, and stiffness of the X-type SSRC columns. The analysis considered the effects of varying parameters such as torsion-bending ratio, axial compression ratio, cross-section steel ratio, longitudinal reinforcement ratio, stirrup reinforcement ratio, and stud spacing. The test results revealed that cracks in SSRC columns subjected to combined torsion predominantly exhibited a spiral upward development. The ultimate failure mode was primarily governed by the stirrup ratio, resulting in either bending-torsion failure or pure torsion failure. The torque-torsion angle hysteresis curve exhibited a pinched, reverse "S" shape, while the bending moment-displacement hysteresis curve displayed a relatively full, fusiform shape. The axial compression ratio and torsion-bending ratio exerted the most significant influence on the seismic performance of the specimens. Increasing the section steel ratio, longitudinal reinforcement ratio, and stirrup reinforcement ratio generally enhanced seismic performance indicators, such as ductility and energy dissipation capacity. X-bolted specimens demonstrated superior comprehensive seismic performance compared to staggered specimens. Optimizing stud spacing by reducing it to an appropriate level can improve the seismic performance of the members; however, excessively sparse or dense stud spacing can negatively impact seismic performance.