PSG has now won the season-opening trophy on 14 different occasions.
The Parisian giants required a stoppage-time leveler followed by a successful penalty shootout to get past Marseille in Kuwait and capture a fourth straight French Super Cup victory.
The Champions League holders appeared to be sailing towards a comfortable triumph in the showdown featuring the French league winners and the French Cup winners after Ousmane Dembele opened the scoring in the opening stages.
However, the southern French side fired twice late to seize a surprise lead. First, the English forward scored from the spot-kick, before the defender inadvertently turned the ball into his own net for an own-goal.
In a breathtaking twist of events, the Portuguese striker grabbed a vital equaliser in the final moments to send the contest into a penalty shootout. PSG goalkeeper Lucas Chevalier then stood as the hero, stopping crucial kicks from O'Riley and Traore.
From the spot, Ramos, Vitinha, the full-back, and the young talent all scored successfully for Paris Saint-Germain to complete a 4-1 penalty win.
The record winners PSG, who faced last season's Ligue 1 runners-up Olympique de Marseille after achieving a domestic double, have now lifted this competition for the 12th time in the past 13 years.