West Australian Liberal senator Linda Reynolds's motion was carried on Wednesday - a day after RugbyWA lost its battle in the NSW Supreme Court to retain the Western Force.
Senator Reynolds was critical of the decision-making process used by the ARU to axe the Force, and also the governing body's lack of transparency.
The Community Affairs References Committee will put the ARU under the microscope and report by November 13.
"As a stakeholder in rugby ... I am disgusted at the lack of leadership sport has in Australia," Welborn said.
