Australia is faced with a "national test" requiring urgent action amid an "assault" on First Peoples, Children's Ground chief executive Jane Vadiveloo states.

During National Reconciliation Week, Ms Vadiveloo urged the public to demand reform and take action, telling non-Indigenous Australians "this is your moment".

Children's Ground is a First Nations organisation driving long-term change through Indigenous culture and leadership.

On its website, the organisation pinpoints a future where 'our next generation of children know and celebrate their culture and identity, have freedom of choice and expression and can live with opportunity, peace, harmony and wellbeing' and 'Australians recognise our shared history and celebrate First Nations culture and strength', as its vision.

At present, Ms Vadiveloo said on Tuesday, a "devastating truth" has been highlighted by National Reconciliation Week".

"Australia continues to fail and cause suffering to First Nations people. Reconciliation as a promise of unity and healing is being overshadowed by injustices, decisions and systems that continue to profoundly harm First Nations people, families and Country," she wrote.

"Reconciliation cannot be symbolic.

"It must be real. It must be just. And it must begin now."

The organisation's boss highlighted the death of 24 year-old Warlpiri man Kumanjayi White while in police custody in Mparntwe (Alice Springs), which has sparked calls for an independent investigation and public vigils across the country.

Northern Territory police last week rejected calls for an independent inquiry.

"The assault on First Peoples, on their Country, on their identity, on their voice, and on their safety is relentless. Every day First Nations communities live through realities few Australians ever witness," Ms Vadiveloo wrote.

Grieving families, examples of poor living conditions and water insecurity in some communities, illness, poverty and systemic racism were highlighted.

"What does reconciliation mean when this is allowed to continue?" Ms Vadiveloo asked.

"Pat Dodson's recent warning could not be clearer when he said we are witnessing an ongoing process of erasure of First Peoples. The incarceration of young people, the relentless removal of children, the destruction of culture."

Last week, Mr Dodson, a Yawuru man and former Labor Senator often called the 'Father of Reconciliation' labelled disproportionate rates of Indigenous child removal and incarceration rates of young people an "embarrassing" stain on Australia - likening it to a modern form of genocide and as assault.

"For over 200 years, First Nations people have led resistance, held knowledge, offered solutions. They have buried their children. They have stood before governments, in courtrooms, at the United Nations. They have extended their hands in generosity, in welcome. Still, they wait," Ms Vadiveloo wrote.

"This is a national test. For all who are not First Nations, this is your moment."

In addition, calls for national truth-telling, heritage protection laws, attention on disproportionate child removal and incarceration rates, and support community led-solutions were urged as a list of demands for the public to signal.

"Write to your MPs. Speak out when you see racism. Challenge the systems. Take action," Ms Vadiveloo wrote.

"Reconciliation is not something that First Nations people owe to Australia. It is something Australia owes to First Nations people.

"We must act. Not next year. Not in another decade. Now."