Afghanistan's Foreign Minister says he has asked Australia for technological support to help push back a resurgent Taliban as the battle to control the country intensifies.

Mohammad Haneef Atmar spoke to the Australian Strategic Policy Institute (ASPI) on Wednesday and painted a grim picture of Taliban gains, saying the militant group was launching a "massive, brutal and opportunistic military campaign of violence and terror".

Three more provincial capitals have recently fallen to the Taliban, which now controls large swathes of the country.

Australia has already withdrawn all its troops from Afghanistan and US forces are due to leave by the end of the month, stoking fears that the government could collapse within months.

Mr Atmar said he had spoken to Foreign Minister Marise Payne about how best to sustain the Australia-Afghanistan partnership in the wake of the troop withdrawal and suggested he had asked her for other forms of military support.

"I did raise ideas of technologies which can be used to make up for the loss of air assets because of the drawdown of [US] troops," he said.

It is not clear exactly which technology Mr Atmar was referring to, and he did not provide any further details, saying he didn't want to publicly canvass military issues.

But analysts suggested he might have asked Australia for either intelligence support or perhaps for military drones, either to hit the Taliban or to conduct surveillance operations.

Australia has previously used drones to conduct military operations in Afghanistan, particularly for battlefield surveillance.

The United States has also helped Afghanistan's army develop its own drone program, although it has been plagued by problems, including inadequate training for local officers.

Mr Atmar did not say whether Senator Payne had made any commitments or agreed to any requests, and the federal government has not yet responded to his remarks.

The security situation in Afghanistan has deteriorated as the Taliban increasingly targets urban areas, including the capital Kabul.

The federal government announced in May that it was temporarily closing the Australian embassy in Kabul because of the security threat posed to diplomats.

But last month, the ABC reported the government was already planning to re-establish a presence in the country so it could closely monitor the Taliban's resurgence.

Concerns Taliban will make larger gains

Mr Atmar said Afghanistan was doing everything possible to provide security to foreign missions, and he hoped Australia would send diplomats back to the country soon.

"Of course we want Australia's diplomatic presence in Afghanistan, we are fully supportive and are committed to doing whatever we can to provide security," he said.

The foreign minister also heaped praise on Australia's aid and development program in the country.

He reiterated his call for the UN Security Council and the international community more broadly to ramp up political and economic pressure on the Taliban to force it back into meaningful negotiations.

But he struck a fairly pessimistic tone when asked about the army's chances of holding off the militant group, saying receding US air support had "diminished the capability of our forces to put up resistance".

However, the United States military has repeatedly declared that it remains determined to quit the country by the end of this month.

Pentagon spokesman John Kirby said the United States had no intention of ramping up air strikes in Afghanistan to help the national army, despite the gains made by the Taliban.

"It's their country to defend now. It's their struggle," he said.