The Victorian government hopes $250 million can help prop up 90,000 small to medium-sized businesses and sole traders through the state's seven-day lockdown.

Victorian businesses forced to shut during the state's fourth lockdown will be given a $250 million lifeline, although there is no support for out-of-pocket workers.

The Victorian government on Sunday announced its much-anticipated support package to help businesses survive the seven-day shutdown.

The $250 million package includes $190 million in $2500 grants for businesses, $40.7 million in $3500 grants for liquor licence and food certificate holders and $20 million for event operators.

It expects 90,000 small to medium-sized businesses and sole traders to be eligible for the payments.

Treasurer Tim Pallas said the quarter of a billion dollar package was bigger and broader than that provided during the state's snap lockdown in February.

"It's the single biggest package on a pro-rata basis that this state or any state has provided," he told reporters on Sunday.

Treasury estimates Victoria's seven-day lockdown will punch a $700 million hole in the economy, but Mr Pallas would not be drawn on possibly extending the package if it drags out past Thursday.

"It is hurting businesses. It is hurting the workforce," he said.

"We understand that we have an obligation to assist and support them. That is exactly what we are doing."

Industry groups welcomed the package after publicly lobbying the state government for immediate support, although some fear it might not be enough.

"Compared with the cost to business from the lockdown the relatively small amount of support offered will be quickly swallowed up if the lockdown continues beyond a week," Australian Industry Group Group Victorian head Tim Piper said.

Victorian Chamber of Commerce and Industry chief executive Paul Guerra added the federal government needed to urgently follow suit with a JobKeeper-like wage subsidy.

"When Australians needed support in 2020, both state and federal governments were there. Now is not the time for the feds to abandon Victorians," he said.

Acting Premier James Merlino and Mr Pallas both lashed the federal government for its refusal to come to the aid of Victorian workers in their time of need.

"The Commonwealth's view is that if these are short-term circuit breakers, then the states should pay for them," Mr Pallas said.

"Well, we are paying. We are paying very substantially, and I don't think working people should be paying."

But Victorian Opposition Leader Michael O'Brien criticised the tactic, accusing the government of lobbing "verbal hand grenades" to deflect responsibility for the lockdown.

"Attacking the federal government doesn't get Victoria reopened. It doesn't get Victorians back to work. It doesn't keep the virus under control," he told reporters.