The anti-halal certification campaigner Kirralie Smith, who was a NSW Senate candidate for the right-wing Australian Liberty Alliance at the last election, has joined Cory Bernardi's Australian Conservatives.

Asked if she was planning to run for office at the next federal election for Australian Conservatives, Mrs Smith said she was dedicated to supporting the new party in any way she could, whether that meant putting stamps on envelopes or again running for the Senate.

Kirralie Smith has been described as a potential leader for a new conservative movement.

She said it was clear from the last election that at least 1½ million Australians had lost faith with the major parties and she wanted conservatives in Australia to unite behind Senator Bernardi's movement.

Mrs Smith, viewed by some as a potential leader in right-wing circles outside mainstream politics, confirmed she joined the Australian Conservatives on Friday, having known Senator Bernardi for about seven years.