One Nation leader Pauline Hanson has confirmed she has caught COVID-19 just days before the federal election.

The outspoken senator, who has been vocal on her stance against vaccination and is herself unvaccinated, confirmed she is self-isolating after testing positive for the virus.

"I thank all of those people who have sent their well wishes, and I look forward to disappointing all of those who hope that I drop dead," she said.

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The 67-year-old believes she contracted COVID-19 while campaigning in Perth.

Hanson said she began to show symptoms on Friday last week before testing positive on Saturday.

"I will self-isolate in accordance with the current rules, and do my best to drive One Nation policies from home ahead of this weekend."

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Hanson is hoping to be reelected to the Senate on Saturday.

One Nation members have regularly attended so-called "freedom rallies" to protest against vaccine mandates and other public health measures.

Last year, Hanson declared "I haven't had the jab, I don't intend to have the jab, I'm not putting that shit in my body."