It would make Queensland laws the strongest in the country, aimed at keeping some of the worst repeat offenders under the watch of authorities for life.
The move comes amid growing concern over notorious sex offender Robert John Fardon, who is set to go unmonitored in the community when his supervision orders end next month.
Premier Annastacia Palaszczuk said she expected the amendments to be introduced and passed in State Parliament on Tuesday.
"This is very important that we all work together in relation to these laws," she said.
"There will be added funding for the police for monitoring and surveillance, but these laws need to withstand any constitutional appeal that may come.
"We are giving police more powers to restrict their movements — the Police Commissioner will always know where these offenders are living."
'We have triple-checked these laws'
Ms Palaszczuk said the State Government has had a number of lawyers working on the changes to ensure they cannot be challenged.
"We want to see the community as safe as possible — we have checked these laws, we have double-checked and we have triple-checked these laws," she said.
Under the proposed amendments, repeat or serious offenders who are due to expire from the Dangerous Prisoner Sex Offenders list will automatically become a reportable offender.
Fardon has a history of sex offending dating back to the 1960s and 1980s, when he was jailed for raping and assaulting a woman.
As the law currently stands, the end of his supervision orders means Fardon would no longer be subject to curfews, counselling or restrictions from next month.
'Doesn't go far enough': LNP
The State Government has come under increasing pressure from the State Opposition to act, since news of Fardon's impending release from monitoring.
Opposition Leader Deb Frecklington had threatened to introduce a private member's bill to Parliament in a bid to have repeat sex offenders monitored for life.
Ms Frecklington said the scope of the Government's amendment was too narrow and should include all sexual offenders.
"It does not cover all repeat violent sexual offenders, so it simply doesn't go far enough," she said.
"What we see is a plan that appears to be cobbled together, rushed and certainly does not go far enough."