The accusation referencing former US president Donald Trump was made by Minister for Indigenous Australians Linda Burney during an emotional plea for people to vote 'yes' for the voice.
"Fair Australia, the organisation funding the 'no' campaign is importing Trump-style politics, it's post-truth with the aim of polarising our country," she said at the National Press Club in Canberra on Wednesday.
Ms Burney detailed how she is frequently a target of online trolls and called out One Nation Senator Pauline Hanson for racist views about Aboriginal identity.
"Last month Pauline Hanson was on radio and said she had met a 'true Black' - what she is saying is that some Indigenous people are less deserving of their identity - to say that is an insult is an understatement," she said.
"Do not let the 'no' campaign get away with using Trump-style politics in Australia.
"Do not let them divide us."
The voice will be a policy development partnership with government on Indigenous issues, meaning both parties will set the agenda. The referendum will be held later this year.
Ms Burney said if the referendum gets up she would ask the voice for advice on policy, including the four key sectors of health, education, jobs and housing.
"From day one the voice will have a full in-tray," she said.
"The voice will be tasked with taking the long-view."
Ms Burney said the voice would be focused on making the future better and unlike government would not be distracted by election cycles.
"I will be asking the voice for input to solve these most pressing issues. It's not going to be a passive advisory body."
Ms Burney said Indigenous children were 55 times more likely to die from rheumatic heart disease than non-Indigenous people.
"These deaths are completely preventable with access to medical care, proper housing and running water," she said.
Ms Burney said she wanted voters to think about people such as her friend Michael Riley.
Mr Riley grew up in Dubbo in the 1960s and lived on the Talbragar Aboriginal Reserve, one of the many missions around the country where Aboriginal people were forced to live in often overcrowded conditions, with little or no access to healthcare or basic services.
He contracted rheumatic fever, a serious but preventable illness that if left untreated can lead to rheumatic heart disease and death.
Mr Riley became a renowned photographer but died aged 44.
"I visited him every day in hospital," Ms Burney said.
"I watched him go blind in one eye.
"His Aboriginality condemned him to an early death - a preventable death."
Polls have shown support for the 'yes' vote slipping, but Ms Burney said Australia needed new perspectives to solve old challenges.
"For too long governments have made polices for Indigenous Australians, not with Indigenous Australians," she said.
"We need the voice to change that ... because the voice will be a mechanism for government and parliament to listen."
It was time for the constitution to recognise Indigenous Australians who have coexisted on the continent for more than 65,000 years, Ms Burney said.
The referendum's success depends on a double majority, more than 50 per cent support across the country and in a majority of the Australian states.
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