The Parisian club has now secured the prestigious cup on fourteen separate occasions.
The Parisian giants required a stoppage-time leveler followed by a perfect penalty shootout to get past Marseille in Kuwait and secure a record-extending fourth consecutive French Super Cup title.
The European champions appeared to be coasting towards a straightforward win in the match between the French league winners and the Coupe de France holders after Ousmane Dembele opened the net early on.
Yet, Marseille struck two times in the closing moments to seize a shock lead. First, Mason Greenwood scored from the spot-kick, before the defender inadvertently turned the ball into his own net for an own-goal.
In a remarkable twist of fortune, Goncalo Ramos grabbed a crucial leveler in the dying moments to send the contest into a penalty shootout. PSG goalkeeper Lucas Chevalier then stood as the key figure, saving decisive attempts from O'Riley and Traore.
In the shootout, Ramos, Vitinha, Nuno Mendes, and the young talent all converted successfully for PSG to seal a 4-1 penalty victory.
The record winners PSG, who met last season's Ligue 1 runners-up Marseille after completing a league and cup double, have now won this trophy for the twelfth time in the past 13 years.