One of the nation's largest Aboriginal organisations will push for a treaty as a "chance to heal the past".

The New South Wales Aboriginal Land Council will today call on both sides of politics in New South Wales to agree to treaty negotiations.

The council — which has 23,000 members — said a treaty was one of its key priorities for the next five years.

New South Wales is home to the highest number of Aboriginal people in the country.

Council chairman Roy Ah See said a treaty or settlement was a "new demand", 40 years since the organisation began in Redfern in 1977.

"Our people are ready to take the next steps, which we believe should lead to a treaty in New South Wales," he said.

Mr Ah See said the council did not have a preferred treaty model, but said it must boost economic development.

"A treaty is a practical way for New South Wales to deepen Aboriginal participation in the economy," he said.

Victoria, SA already in state-based treaty talks

Both the Victorian and South Australian governments are already in talks with Aboriginal people about state-based treaties, but it is unclear whether compensation will be paid in those states.

Canada and New Zealand have negotiated treaties with Indigenous populations, which yielded compensation, land and fishing rights.

In May, the Uluru Statement from the Heart called for a national treaties commission to be established to oversee new agreements with states.

Victoria's Labor Government began treaty talks with Aboriginal Victorians in 2016 — but formal negotiations may not start until 2020.

Aboriginal Victoria has previously said talks may result in "many treaties".

South Australia made history when it commenced treaty discussions with Ngarrindjeri people last week.

The state's Aboriginal affairs minister, Kyam Maher, said it was the first time an Australian government had started formal treaty negotiations.

The South Australian Government has committed $4.4 million over the next five years to the process and promised negotiations would be "open-ended".