Queensland Premier Campbell Newman would lose an election held this week despite commanding a landslide majority in parliament, a poll suggests.

Queensland Premier Campbell Newman would lose an election held this week, a poll shows.

The ReachTel poll of 2900 voters found the Liberal National Party would suffer an 11 per cent swing against it on primary votes.

Mr Newman, Brisbane’s former lord mayor, was elected in a landslide two years ago, but public service retrenchments, contentious anti-bikie laws and a long-running contracts dispute with senior public hospital doctors are hitting his popularity.

The poll, commissioned by the Together union, found the LNP’s primary support had slumped to 39 per cent, a dramatic fall from March 2012 when it won almost 50 per cent of first preference votes.

Mr Newman would lose with inner-Brisbane seat of Ashgrove if that result was replicated at an election, due next year.

Labor’s primary vote rose to 35 per cent, compared with 27 per cent at the last election, while the Greens had 7.3 per cent support, the poll found.

Opposition backing was strongest in Brisbane, where it had almost 40 per cent support compared with 30 per cent in regional Queensland.

The ALP, which now holds just eight seats, could form a small majority in the 89-seat parliament, with Greens preferences, if those polls results were repeated on election day.

Electors only have to vote one under Queensland’s electoral system.

This could see the Palmer United Party, with 11 per cent support in the bush, take votes off the LNP and help Labor in close races.

Katter’s Australian Party had 3.3 per cent support.