Queensland's biggest university is considering an audit of its student union after allegations of corruption in its election process.

The incumbent conservative party of the University of Queensland's student union, Fresh, has been accused of changing election rules five days before the start of campaigning to make it difficult for rival parties to register under their own names.

University of Queensland ... questions raised over transparency of the UQ Union. Credit:Glenn Hunt

Queensland's biggest university is considering an audit of the UQ Union after complaints about its election process.

Deputy vice-chancellor Professor Mick McManus said the university did not normally get involved with the union because it operated independently as a distinct constitutional entity.