PSG has now won the prestigious trophy on 14 separate occasions.
The Parisian giants needed a dramatic leveler followed by a successful penalty shootout to overcome Marseille in the Gulf and capture a fourth straight French Super Cup victory.
The European champions appeared to be sailing towards a comfortable win in the match featuring the French league champions and the Coupe de France winners after Ousmane Dembele found the net early on.
Yet, the southern French side struck twice in the closing moments to seize a surprise lead. First, Mason Greenwood converted from the spot-kick, before Willian Pacho inadvertently directed the ball into his own net for an own goal.
In a breathtaking turn of events, Goncalo Ramos snatched a vital equaliser in the dying moments to send the match into a deciding shootout. PSG goalkeeper Lucas Chevalier then stood as the key figure, stopping decisive attempts from Matt O'Riley and Hamed Traore.
In the shootout, Goncalo Ramos, the midfielder, Nuno Mendes, and Desire Doue all converted successfully for PSG to complete a convincing penalty victory.
Now 14-time champions PSG, who faced last season's Ligue 1 runners-up Marseille after achieving a domestic double, have now lifted this competition for the 12th time in the last thirteen seasons.