Premier Annastacia Palaszczuk, Deputy Premier Jackie Trad and Treasurer Curtis Pitt were sworn-in by Governor Paul de Jersey at Government House ijn Brisbane on Saturday morning.
Ms Palaszczuk had to rush from the regal ceremony to attend the funeral of a former Labor minister, but her deputy outlined the new government's priority.
Ms Trad says the premier's focus will be on kick-starting the state economy and boosting employment.
"I'm looking forward to working hard with her and the whole Labor team to deliver for Queensland the jobs and the projects that we need to get the state back into gear," she said.
"(The premier) will be absolutely driving jobs growth in this state because Queenslanders need jobs, working Queensland families need that income so that they can live decent lives.
"I know that Annastacia's passionate about it, we all are."
The Queensland Resources Council and Australian Retailers Association congratulated Ms Palaszczuk and Labor.
Both groups said they were relieved to now have certainty about the government and were looking forward to working with them.
Premier Palaszczuk, Ms Trad and Mr Pitt currently share 19 portfolios between them as part of an interim administration.
But Labor's caucus will convene on Sunday to vote the new ministry.
Key independent MP Peter Wellington said he was keen for that to happen so the government could get to work.
"We've now got certainty so the government can start working and do what Queenslanders want them to do," he told AAP.
Mr Wellington later said he was proud to give his support to a woman of "great integrity and honesty" whom he admired.
He wrote on his Facebook page that Ms Palaszczuk had made herself very accessible to Queenslanders, travelling round state and listening to them, over the past three years.
"This is the sort of person we want as our leader," Mr Wellington wrote.
"A woman of the people."
Former prime minister Julia Gillard congratulated Ms Palaszczuk via Twitter shortly after she was sworn-in.
"My congratulations to Premier Annastacia Palaszczuk AnnastaciaMP. She will be a great leader for Queensland. I wish her every success. JG," she wrote.
