Pauline Hanson says Liberal candidates have been approaching her party seeking preference deals.

The One Nation leader says she and a Senate candidate have been sounded out despite Prime Minister Malcolm Turnbull declaring she is not welcome in Australian politics.

"We have had approaches from Liberal party candidates who are asking for preferences in this election," she said.

Ms Hanson said she had been personally approached about a lower-house preference deal for a seat in Queensland, while one of her senate candidates, Simon Roylance, had been approached in Victoria.