Concrete bollards will be installed along the Brunton Avenue entrance and other thoroughfares leading to the MCG in a bid to protect against vehicle attacks.
Temporary bollards have already been installed on Spring Street and other points along Friday's grand final parade route.
Victoria Police assistant commissioner Stephen Leane said a new security overlay had been designed for the event.
"You'll see police everywhere," he said. "You'll see physical barriers put in place to keep the crowds safe and make sure the players are well and truly safe."
Mr Leane said the concrete bollards were the result of months-long collaboration between police and the City of Melbourne.
About 1000 police officers will work across the three-day long weekend, he said.
"You'll see police as many places as we can put them."
Close to 100,000 footy fans are expected to pour into the iconic stadium on Saturday for the much-anticipated clash between the Tigers and the Crows.
As is standard at the MCG, every fan will be body scanned on entry and all bags will be checked.
There will be no car parking at Yarra Park and attendees are encouraged not to drive to the ground.
"We don't want to mix vehicles and pedestrians," Mr Leane said.
Police will also patrol Federation Square, Punt Road Oval and pubs and bars throughout Richmond.
AFL boss Gillon McLachlan said he was confident the increased security measures would not affect the fans' experience.
"I am optimistic of that, but clearly, as everyone would expect, we will have worked with Vic Police to take all the necessary precautions," McLachlan said at the MCG.
"There'll be a lot you see, and a lot you don't see. Come and enjoy it knowing that all advice has been heeded and we are invested in making sure that everyone has a safe and a fun day."
Police Minister Lisa Neville said she wanted everyone to enjoy grand final weekend and to do it safely.
"I think people should feel very secure that we've got the best security arrangements that could possibly be put in place," she said.
The story 'You'll see police everywhere': Grand final security heightened first appeared on The Age.