MP for the former mining town of Ashfield, a key Red Wall seat, Anderson was previously a coal miner and Labour councillor before defecting to the Conservatives four years ago.
Anderson, who claims to speak for voters outside of the “London bubble”, recently caused a media storm when he expressed his support for bringing back the death penalty, a position not shared by the government.
He joins GB News as a programme host and regular contributor.
He has been a regular guest on GB News, the right-wing channel which was this week censured by Ofcom for broadcasting “harmful and misleading” claims about vaccines.
“GB News is the true voice of the Great British silent majority,” Anderson said. “I’m joining the people’s channel to ensure their voice is heard.”
GB News editorial director Michael Booker said: “Lee has been a breath of fresh air in Westminster since he was elected, doing something that many politicians are scared to do: talking honestly about what they believe.
“Our viewers and listeners appreciate his common-sense language, something that has been missing from politics for a long time. As the next election will be fought in the Red Wall, Lee’s insights into northern voters will be key.”
Anderson is the latest in a string of hires at GB News as the channel seeks to expand its political coverage.
Daily Telegraph writer Christopher Hope is joining a head of politics and Brexiteer former Cabinet Minister Jacob Rees-Mogg has presented his own prime-time show.
The channel announced this week that former First Minister of Northern Ireland, Baroness Arlene Foster, will expand her role as a presenter across the GB News schedule.
Anderson’s immediate predecessor as MP for Ashfield is GB News presenter Gloria De Piero, who hosts political interviews in her Gloria Meets programme on Sundays. De Piero was a Labour MP and front bencher for 11 years.
Britain’s longest serving political editor, Nigel Nelson, is joining GB News as Senior Political Commentator for the channel’s expanding politics team.
Nelson has spent 36 years in Parliament heading up politics for the Sunday People and Sunday Mirror. He was nominated for Political Journalist of the Year in the 2017 British Press Awards and is now on his ninth prime minister.
“As Labour looks likely to win the next election, and I’ve spent my career with a Labour-supporting newspaper, the perspective of anyone from the Left will be critical to any conversation about politics,” Nelson said.
He added: “GB News has proved itself to be the true home of free speech, so while I cannot promise everyone will agree with me on everything, I do promise to tell it as I see it honestly,”
Michael Booker added: “From The People to the People’s Channel – Nigel is one of the most respected political operators around and we are proud to have him on board.”