The former Partenopei defender believes the Spaniard brings a proven track record of winning trophies to Stadio San Paolo
Walter Mazzarri stood down as the Partenopei boss at the end of the Serie A season, after guiding the club to a second-placed finish and subsequently replaced Andrea Stramaccioni as Inter trainer.
Benitez has spent over half of the 2012-13 campaign in charge at Chelsea and helped them to win the Europa League, but his temporary contract has run out and he is set to be replaced by Jose Mourinho, who will handle his final Real Madrid game on Saturday against Osasuna.
The retired Cannavaro, who was at Napoli in the early part of his illustrious career, believes Benitez's proven track record of winning trophies makes him a fine choice to take over at the Stadio San Paolo this summer.
"With Benitez, he should not be measured on his time at Inter," he told Sky Sport 24. "The Spanish coach has important experience.
"He has won trophies in England and Spain. Napoli have done well to get him.
"The work, however, will not be easy which is why they had to replace [Mazzarri] with a coach who has led teams at the highest levels before."
Fabio Cannavaro's younger brother Paolo, 31, has been at Napoli since 2006.