One Nation has threatened to block all legislation in South Australia until it is given more staff.

SA leader Cory Bernardi issued the ultimatum on Tuesday after the right-wing party's federal members in Canberra, including Pauline Hanson, had been complaining for weeks about their allocated staff numbers.

Bernardi claimed One Nation was allocated 2.6 full-time staff for its four members in the lower house and three in the upper house.

But the Greens had 3.6 full-time staff for its two upper house members.

'One Nation's been denied the same political resources that have been made available to the Greens. It's been denied the similar resources which are being made to the Liberal Party, you got to ask why,' he told reporters.

'There's no justification for it and the message is very clear: we will not support one scrap of legislation by this government until the playing field is level.'

SA Attorney-General Kyam Maher argued to the ABC that One Nation already had more staff than the Greens.

He said the standard staff allocation is 2.6 for each lower house MP and 1.6 for upper house senators.

Extra staff are assigned on a 'case-by-case basis' to help members cope with the 'legislative load they face from the government and the opposition'.

Maher said SA One Nation had already been allocated seven extra staff while only four extra staff were assigned to the Greens. 

'If they (One Nation) don't want to have the emergency measures possible for the state of South Australia during a fuel crisis and they want to vote against it because they're not getting the perks they want, I think South Australians would judge that accordingly.'

Currently, for Labor to pass a bill in the SA upper house, it needs two crossbench votes.

The crossbench is comprised of three representatives from One Nation, two Greens and Fair Go's Sarah Game.

Bernardi said of the impending struggle for Labor to pass legislation: 'That's their problem, it's not my problem. 

'They are playing petty politics, just like they always do, they never missed an opportunity to stick it to their opponents.

'When they come begging and screaming for us to support one of their schemes, there's going to be a long conversation.'

Bernardi's threat comes just two weeks after federal One Nation leader Hanson accused Prime Minister Anthony Albanese of driving her staff to exhaustion by refusing to allocate her party more workers.

'The Australian people's personal struggles are worse than ever – my staff have had to talk people down from the edge of taking their own lives,' Hanson said.

She claimed the apparent understaffing was an attempt by Albanese to undermine his political opponents. 

'I am the leader of a political party that is polling more than the major political parties,' Hanson said. 

'The government has failed to staff One Nation anywhere close to a functional level. This is pure bloody-minded politics by the Labor Party.

'I have been going to both the prime minister and Special Minister of State Don Farrell since the staff cuts. 

'I have been begging and pleading with them to give us more staff to deal with the heavy workload.'

Albanese has cut staffing across the board and a review found workers faced significant stress.

'Staffing levels overall are not adequate to meet all the parliamentary and electorate work demands placed on staff in some offices,' the review, released in August, said.

'Workload in parliamentary offices remains consistently high throughout the year, driven by constituent expectations and the demands of a 24-hour news cycle.'

Hanson claimed one of her staff personally wrote to Albanese to request more workers be allocated to One Nation to reduce the workload. 

'Labor hasn't even responded and couldn't care less,' Hanson said.

One Nation claimed it has five electorate officers, the standard allocation for each MP.

Further, Hanson said she had two parliamentary advisers, compared to Greens leader Larissa Waters' 15, and Albanese's 59.