The visitors had the first shot on target inside five minutes, and it was a great chance to make it 1-0, but instead of finding the net, Takumi Minamino shot straight at Gianluigi Donnarumma after being found by Maghnes Akliouche.
And that wastefulness was quickly punished when teenage winger Désiré Doué was deemed to have been caught by Denis Zakaria, with Vitinha curling the resulting free-kick around the wall and beyond the startled Radoslaw Majecki.
However, somewhat against the run of play, Monaco equalised on 17 minutes. Soungoutou Magassa exchanged passes with Breel Embolo and released Zakaria, who was at an angle but managed to squeeze an effort past Donnarumma at his near post, leaving questions to be asked of the Italian.
Adi Hütter’s men soon could have completed the turnaround when Minamino was again fed by Akliouche, only for Willian Pacho’s superb last-ditch tackle to thwart the Japan international.
At the other end, Bradley Barcola chose to cut back instead of testing Majecki following João Neves’s slide-rule pass and the chance was lost, before Doué fired wide after being slipped in by home debutant Khvicha Kvaratskhelia.
Luis Enrique will have been frustrated that his side weren’t ahead at half time given how much they had dominated possession, but PSG retook the lead on 54 minutes when Barcola’s incisive pass found Kvaratskhelia, who sat Christian Mawissa down before sliding the ball past Majecki for his first goal at his new club.
The Georgian could have doubled his account moments later, but Majecki was equal to his strike. Soon it was 3-1 though, as Ousmane Dembélé played a razor-sharp one-two with Doué before slamming home, with the duo and Gonçalo Ramos subsequently passing up opportunities to make it four.
And from that point onwards, Monaco weren’t able to offer much of a threat, with the game dropping in intensity as PSG eased to victory, rounding off the scoring with Dembélé’s late tap-in for his second of the night and his 16th of the league campaign, cementing his status as the division’s leading marksman this season.
Eight of PSG’s last nine matches have seen both teams on the day find the net, so Enrique will be looking for a rare clean sheet in 2025 when they travel to Brest on Tuesday for the first leg of their UEFA Champions League (UCL) knockout-phase play-off tie. Monaco meanwhile remain third in Ligue 1 and also have UCL action next midweek, hosting Benfica.
Flashscore Man of the Match: João Neves (Paris Saint-Germain)