Premier Annastacia Palaszczuk's Labor government will likely be returned due to a decline in the LNP vote and the rise of Pauline Hanson’s One Nation party, an exclusive Nine-Galaxy exit poll predicts.

Labor is expected to pick up as many as 51 seats - four more than the 47 needed to form majority government - with primary support apparently maintained at a similar level to the last election, which it won narrowly.

The poll found a two-party preferred figure of 52 percent for Labor and 48 percent for the Liberal National Party (LNP) – representing a swing to Labor of just 0.9 percentage points since the last election.

An exit poll predicts Premier Annastacia Palaszczuk will win the 2017 Queensland election. (9NEWS)

In a normal election, a party with 52 percent of the two-party preferred vote could expect a majority in the new parliament, but this is no ordinary election due to the 'wild card' of One Nation.

The nationalist party will have a significant impact on the outcome with 13 percent primary support statewide, and the task of allocating preferences could take considerable time.

THE BREAKDOWN

According to the poll, Labor has 37 percent of the primary vote while the LNP has 35 percent after slipping by more than six percentage points since the last election.

Since Campbell Newman swept to power in 2012 with more than 49.7 percent of the vote, support for the LNP has dropped by more than 14 percentage points.

While statewide support for Pauline Hanson’s One Nation party is at 13 percent, it is 22 percent in regional Queensland.

Regional support for One Nation is so great that many seats could be three-cornered contests and hard to predict.

Pauline Hanson campaigned in her Battler Bus. (AAP)

LNP leader Tim Nicholls enjoyed a sausage after voting. (AAP)

When it comes down to LNP versus One Nation candidates, Labor preferences will likely elect the LNP candidate.

One Nation preferences will split 60-40 to LNP and Labor, the poll found.

Support for the Greens is apparently at nine percent – a slight rise since the last election.

The usual strong flow of preferences from Greens to Labor was confirmed by the poll, with an 80-20 split between Labor and the LNP.

Primary support for other minor parties and Independents is at six percent, including two percent for Katter’s Australian Party.

REGION ON REGION

If the swing to Labor were uniform, the party could pick up as many as 51 seats in the newly 93-seat Parliament.

However, the Galaxy poll found the swing would not be consistent – instead, it predicted a three-percentage point swing to Labor in south-east Queensland and a two-percentage point swing against Labor in the rest of the state.

This means seats including Bundaberg, Maryborough, Burdekin and Mundingburra will be at at serious risk for Labor.

KEY ISSUES

Key issues for voters are jobs (33 percent); health (31 percent); stable government (29 percent); and the economy and debt reduction (25 percent), the poll found.

Labor voters are more likely to rate jobs and health and hospitals as the key issues, whereas Liberal voters are more concerned about the economy.

In the regions, employment is the standout issue at 40 percent.