"He will be getting the same treatment that any other Australian would get in those circumstances", Morrison said.
"It doesn't matter what particular crime it is that they're alleged to have committed, that's the way the system works", Morrison said.
In a tweet, WikiLeaks said Ecuador "has illegally terminated Assange political asylum in violation of global law".
Prime Minister Scott Morrison said any extradition plans had "nothing to do with Australia", and that Assange would receive only standard assistance from Australian consular officials.
Assange was arrested after Ecuador revoked the political asylum that had kept him holed up at the embassy for almost seven years.
British police said he was arrested for skipping his bail in 2012 and on behalf of the USA due to an extradition warrant.
The 47-year-old Assange has been living inside Ecuador's embassy in London since 2012, where he was granted asylum.
"When Australians travel overseas and they find themselves in difficulties with the law, well they face the judicial systems of those countries..."
Sweden is reportedly considering re-opening the sexual assault charges.
According to the indictment, in March 2010, Assange conspired with former U.S. Army intelligence analyst Chelsea Manning to crack a password stored on U.S. Department of Defense computers connected to the Secret Internet Protocol Network (SIPRNet), a U.S. government network used for classified documents and communications.
Ecuador's President Lenín Moreno issued a video statement Thursday explaining his country's decision, saying it had "reached its limit" on his behavior. One was the release of the "collateral murder" video that showed a USA helicopter crew callously gunning down Iraqi civilians in 2007, further exposing the murderous nature of the US occupation of that country.