Katter's Australian Party state leader Ray Hopper says he has taken the Queensland Government to the Anti-discrimination Commission.
Mr Hopper says he is being discriminated against, because the State Government passed legislation denying his party official recognition in Queensland Parliament and a slice of Opposition funding.
He says he has made a formal complaint against his former Liberal National Party (LNP) colleague, Deputy Premier Jeff Seeney.
"It's absolute discrimination," he said.
"In the Act, it says about a person's political status and that's exactly what we've taken Mr Seeney to the Commission on."