Prime Minister Julia Gillard has urged against a "big Australia", saying we need to develop policies for a sustainable nation.
The prime minister contradicted her predecessor Kevin Rudd, who was in favour of population growth, as she signalled a tougher approach, Fairfax newspapers say.
"Australia should not hurtle down the track towards a big population," she said on Saturday. We need to stop, take a breath and develop policies for a sustainable Australia."
Ms Gillard said she's not talking about "bringing down the shutters on immigration".
"I don't want business to be held back because they couldn't find the right workers. That's why skilled migration is so important. But also I don't want areas of Australia with 25 per cent youth unemployment because there are no jobs," she said.
Meanwhile, a new poll shows voters want Ms Gillard to get on with the job of running the country and are urging her to fix the mining-tax debacle, stop wasting money and sort out the health system.
The Galaxy poll, published in News Ltd newspapers on Sunday, shows that although most voters believe Ms Gillard gives Labor a better chance of staying in power, they are deeply uneasy about how Kevin Rudd was dumped from office.
Voters believe the deposed leader was treated harshly and want Mr Rudd to stay in parliament and be given an important Cabinet job.
But the poll shows voters overwhelmingly believe the switch to Ms Gillard was the right move.
In the poll, Labor is now in an election-winning position, jumping ahead of the Coalition by two percentage points on a two-party preferred basis, leading 52 per cent to 48 per cent.
But voters insist Ms Gillard must move quickly to settle the mining-tax issue, with 30 per cent of poll respondents saying it should be her first priority and 24 per cent saying she should fast-track health and hospital reforms.
Her third priority should be to get the Budget back into the black, they say.
Only 11 per cent of the 800 voters polled believe Ms Gillard should revive the emissions Trading Scheme to tackle climate change and 13 per cent feel she should get tougher on asylum-seekers.
Labor's primary support has locked in at four points higher than after the Budget, on 41 per cent, but the Coalition has dropped only one point to 42 per cent and that loss has been at the expense of the minor partner, the National Party.