PSG has now claimed the season-opening trophy on fourteen separate times.
The Parisian giants required a stoppage-time equaliser followed by a successful penalty shootout to get past Marseille in Kuwait and capture a fourth straight French Super Cup victory.
The European champions seemed to be sailing towards a comfortable triumph in the showdown featuring the French league champions and the Coupe de France winners after the French winger opened the net in the opening stages.
Yet, the southern French side struck twice late to seize a shock advantage. Initially, Mason Greenwood converted from the spot-kick, before Willian Pacho unfortunately turned the ball into his own net for an own goal.
In a breathtaking turn of events, the Portuguese striker snatched a crucial equaliser in the dying moments to send the match into a deciding shootout. The Parisian shot-stopper Lucas Chevalier then stood as the key figure, saving crucial attempts from O'Riley and Hamed Traore.
In the shootout, Goncalo Ramos, Vitinha, the full-back, and the young talent all converted successfully for Paris Saint-Germain to seal a 4-1 penalty victory.
Now 14-time champions Paris Saint-Germain, who met last season's Ligue 1 runners-up Olympique de Marseille after completing a domestic double, have now lifted this competition for the twelfth time in the past thirteen years.