The National Children's Commissioner has warned Queensland's plan to overhaul juvenile justice would breach the UN Convention on the Rights of the Child.

The State Government has proposed housing all 17-year-olds in adult prisons, naming and shaming youth offenders and allowing adult courts to consider juvenile records.

The Children's Commissioner, Megan Mitchell, has told the ABC's AM program she would consider a legal challenge if the changes go ahead.

"I don't think that's in the best interest of children," Ms Mitchell said.

"I think it can only stigmatise them and ensure that their behaviour as a youngster - their risk taking behaviour as a youngster - follows them into adulthood in quite negative ways."

However, Queensland's Attorney-General Jarrod Bleijie is starring down the warnings.

"If we followed every Convention of the Rights of the Child you'd have all young offenders walking around not serving any detention time at all so it's an absolute furphy," Mr Bleijie said.

"Queenslanders have been telling us for years that for far too long we've concentrated on what's in the best interest of the offender."

The Council of Australian Governments (COAG) endorsed a national framework for protecting Australia’s children in 2009.

The role of the National Children's Commissioner is to promote public discussion, research and education on issues affecting children - and to examine legislation to determine if it protects children's human rights.