The Victorian Government will give emergency funding to more than 100 asylum seekers after a Federal Government welfare crackdown on a group of asylum seekers transported to Australia for medical treatment.

Last month the Federal Government flagged it would cut more than $200 a fortnight in income support to some asylum seekers, and those affected would have three weeks to move out of government-supported accommodation.

Victoria's Multicultural Affairs Minister Robin Scott said the State Government would provide a $600,000 urgent support package to cover accommodation, food, clothing, transport, medicines and case workers.

He said asylum seekers affected by the decision in Victoria would not be stranded.

"You can't just leave people literally without any support," he said.

"We're an advanced civilised society and we don't leave people to starve on the streets."

"This is about ensuring people have a roof over their heads, food and clothing."

There are almost 400 asylum seekers currently in Australia on temporary visas on either medical or compassionate grounds.

Those initially affected by the changes will be moved onto what will be known as a "final departure Bridging E Visa".

Human Services Minister Alan Tudge said last month the proposal would target asylum seekers who had refused to return to Nauru or Manus once their medical treatment was completed.

Asylum seeker advocates labelled the policy "an act of shocking cruelty".