Scott Morrison will discuss Afghanistan's humanitarian needs and the plight of stranded foreign citizens and visa holders during a virtual meeting with G20 leaders.
The extraordinary leaders' meeting to be convened by Italy on Tuesday night will canvas a range of issues following the Taliban takeover in August.
The prime minister stressed it was crucial for the world's major economies to work together to support the Afghan people.
"We must be coordinated in our approach to Afghanistan's immediate humanitarian needs, to demand the Taliban regime ensure safe passage from Afghanistan for foreign citizens and visa holders, and to prevent Afghanistan from becoming a safe haven for terrorism," Mr Morrison said in a statement.
More than 26,000 visa applications have been received by Australia while at least 286 citizens and permanent residents remain in Afghanistan.
The federal government got out about 4100 people during the evacuation of Afghanistan.
It flagged an initial 3000 places would be reserved within Australia's humanitarian program for people fleeing the country.
"I stand with G20 members in supporting international agencies delivering much-needed humanitarian assistance on the ground. Australia is committed to helping Afghanistan build a stable and secure future," Mr Morrison said.
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