One Nation has lost yet another candidate for the next Queensland election, with former policeman Mark Ellis announcing he is no longer standing.

Mr Ellis, who was endorsed to contest the seat of Macalister, announced his withdrawal on his Facebook page on Wednesday.

Former policeman Mark Ellis has withdrawn his candidacy for One Nation. Credit:Facebook

Citing abuse and threats to his family, Mr Ellis decried his targeting by the "leftie media" and "pathetic haters".

He also blamed his decision to quit on a former employee's decision to go to the media with threatening messages allegedly sent by Mr Ellis.