Ronaldo scored the opening goal in his country's 2-0 semi-final win over Wales, powering home an unstoppable header after an amazing leap, while he also set up Nani's strike.
Deschamps is wary of the talent the Real Madrid superstar possesses but has called on his players to give their all to neutralise the 31-year-old's threat in Sunday's showpiece at the Stade de France.
"If there is an anti-Ronaldo plan, no one has yet found there recipe," Deschamps told reporters. "He's a very top player, he's got great athletic attributes in the air.
"It's not just that he can get up high but he can hang there was well. His six-pack is there for a reason, but he has the two things that are very tough to combat in football - pace and the aerial threat.
"It would be great to neutralise him and we need to also limit his influence. That will be important to do."
France captain and goalkeeper Hugo Lloris has also called upon his backline to remain vigilant when it comes to set-pieces, as he expects the final to "come down to fine margins".
He added: "When you play against opposition players like Ronaldo from set pieces, who have the physical attributes to hang in the air, you have to get up early to make sure they don't get the run on you, because otherwise it is very difficult to get to the ball.
"It is not only Ronaldo who is a threat from set pieces. They have a lot of big fellas in the team so you have to respond collectively to set-piece situations."