He's a pig hunter, a weapons dealer, and likely to be the new head of One Nation in Queensland.

So who is Stephen Andrew and how did he secure the party's only parliamentary seat?

The Mackay man describes himself as a "fair dinkum citizen politician", who threw his hat into the political ring to help local businesses and improve youth unemployment.

He lives by the philosophy "Your word and integrity is everything in life" — instilled in him by his grandfather.

He spoke with the ABC while working on a mine site in Central Queensland.

"The most important thing is to help the people of Queensland," he said.

"The first thing is making the electorate and the officials connect with the public so that we can get more public views, interaction, to do with the electorate and politics.

"Going forward with the younger people coming up, we need to be able to have that relationship with the public," he said.

Newly elected One Nation MP Stephen Andrew with his wife Kym. ( Facebook: Stephen Andrew )

Mr Andrew is a fourth-generation South Sea Islander, whose family has strong ties to the Mirani electorate.

"My grandad worked right down through the electorate on the railway, knowing all the people in the different railway towns. And was well know for his honesty and decency," he said.

"Also Dad was working with his ice cream truck all over and I did a fair bit of work through the district as well, so I know people through that."

The father of two is a licensed weapons dealer and feral pest controller.

Sorry, this video has expired Stephen Andrew lays poisoned mangoes to kill feral pigs

His campaign was heavily backed by the Shooters Union of Australia.

The 48-year-old also provides training and development to mining companies around Central Queensland.

He said he was shocked more One Nation candidates were not elected, but he is comfortable being the party's sole voice in Parliament.

"I think there's a reason for everything and it may be that we don't see it yet," he said.

Mr Andrew looks set to be the only One Nation MP to win a seat. ( Facebook: One Nation )

Mr Andrew said the result had a lot to do with the reintroduction of compulsory preferential voting.

"I think that's why a lot of great candidates who would have had a lot of potential are out," he said.

"There's no way to change what's happened but we work together to make the best of it for Queensland."

Mr Andrew said he would be open to supporting both sides of Parliament but has not yet decided whether to form part of a crossbench voting bloc.

"I'd have to talk to Robbie Katter and see what goes on. I'd have to work out and find my feet firmly in Parliament and see where we are to get the best results," he said.

"I haven't even hit the floor yet and then we'll work out where we're heading from there.

"I'm sure we'll all work together, even with different sides of Government, to get the best result for Queensland."

As for whether you would still see him out hunting wild pigs — Mr Andrew gave a confident "yes".