Queensland Liberal National Party leader David Crisafulli says he won't reveal his stance on the proposed voluntary assisted dying bill until later.
The major parties have granted their MPs conscience votes when the bill goes before parliament later this month.
Under the proposed laws, people applying for voluntary assisted dying must have either a disease, illness or medical condition that is advanced, progressive and terminal.
Their condition must be expected to cause their death within a year and it must be causing "intolerable" suffering.
People must also be assessed by two doctors, having made three separate requests for help to die.
Mr Crisafulli says he won't reveal his position on the bill until closer to the event because he doesn't want to sway his party's 34 MPs one way or another.
"I don't have a scorecard on my desk. I won't be barking orders to tell everybody to vote the way that I'll be voting. In fact, I haven't had the conversation about how I'm voting with any of my MPs," he told reporters.
"I don't want to do that. I don't want to try and make this a follow-the-leader debate. I want it to be treated with the seriousness and the sanctimony that it deserves.
"I want people to look deeply at the legislation, but speak to their conscience, speak to their communities, speak to their loved ones, and make a decision that is free from politics and free from political interference."
Deputy Premier Steven Miles last week pleaded with MPs to decisively pass proposed euthanasia laws so dying Queenslanders don't have to fear they will be wound back by a change of government.
Mr Crisafulli said he still hadn't made up his mind on the proposed laws, but called on the premier to ensure Labor MPs have a truly free vote.
"I sincerely hope the premier does the same," he said.
"And I sincerely hope that this isn't a case of somebody issuing rules and dictating orders from the top. It won't be for my party room, that's for sure."
LNP deputy leader David Janetzki said he was also still reviewing the 442-page bill, but would make his position public in coming days.
The committee which reviewed the bill has recommended the federal government amend the Criminal Code Act of 1995 to declare that suicide does not include lawful, voluntary assisted dying.
It also wants the commonwealth director of public prosecutions to protect doctors acting in line with state or territory laws on voluntary assisted dying.
Premier Annastacia Palaszczuk supports the proposed laws after witnessing her grandmother and uncle die in hospital last year.
She will introduce the Voluntary Assisted Dying Bill to parliament next week.
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Australian Associated Press