Ibrahimovic, who joined the Parc des Princes club two years ago, scored his 26th league goal of the season on Saturday as PSG romped to a 4-0 win over Montpellier to celebrate back-to-back Ligue 1 titles.
The 32-year-old has two years remaining on his current contract, but Al-Khelaifi sees the Sweden international as an iconic figure and is keen for him to have a long-term role at the club.
"I spoke to Zlatan so that he'll stay with us when he finishes his playing career and becomes sporting director.
"If he does that he'll become the best sporting director in the world. He's got a big personality and everybody respects him," he told RTL radio.
"I appreciate the professional that is Zlatan, the man that is Zlatan.
"He's very, very funny. I want to keep some former players when they stop, for example Zoumana Camara is somebody I would like to keep with us."