Following a quiet performance in the round-one loss to West Coast, Harvey has averaged more than 25 disposals per game.
Harvey, who turned 33 earlier this month, has also kicked 11 goals in eight matches in 2011.
Normally the Swans would turn to Kieren Jack to neutralise the fleet-footed midfielder, but Jack is still recovering from an ankle injury.
So the Swans are preparing to use a variety of weapons against him.
"There’s probably a few guys who can play on him; Rhyce Shaw and (Craig) Bird and (Dan) Hannebery," Swan midfielder Jarrad McVeigh said.
"With his speed and fitness, he’s a really hard guy to match up on.
"He is playing really well at the moment, so he’s one of the guys we have to stop to get a win for us."
While the Swans are coming off a poor effort in their loss to Hawthorn at the SCG, the Kangaroos are also smarting after the Brisbane Lions ran them down in the fourth quarter at the Gabba.
That result left North Melbourne 14th with just two wins from eight games and McVeigh expects a strong backlash from the Roos on Saturday.
McVeigh singled out Harvey, Daniel Wells and Aaron Edwards - who has kicked 14.0 from his five matches this season - as the key players the Swans will need to contain.
"We know what we’re going to get with them," McVeigh said.
"We’re going to get a lot of hard footy. Their good players are playing really well - Harvey, Wells - and then Edwards up forward is scoring a few goals as well.
"A lot of their young guys are hard and in-and-under, so it’s going to be a tough game and hopefully we can step up from what we produced last week."
McVeigh is also looking forward to the Swans' first trip to Etihad Stadium for 2011.
"It's good when you wake up in Melbourne and it's pouring with rain and you know you're in for a dry day," he said.
"We love playing there, it's no different to anywhere else.
"It's all the same grass and doesn't really bother us."
