The Parisian club has now secured the prestigious trophy on 14 separate times.
Paris Saint-Germain needed a stoppage-time leveler followed by a perfect penalty shootout to overcome Marseille in Kuwait and capture a fourth straight Trophee des Champions title.
The European champions seemed to be coasting towards a comfortable win in the showdown between the French league champions and the Coupe de France winners after Ousmane Dembele opened the scoring in the opening stages.
Yet, the southern French side fired twice late to seize a shock advantage. First, Mason Greenwood converted from the penalty spot, before the defender inadvertently directed the ball into his own net for an own goal.
In a breathtaking turn of fortune, Goncalo Ramos grabbed a crucial equaliser in the dying seconds to force the contest into a penalty shootout. PSG goalkeeper Lucas Chevalier then stood as the key figure, stopping crucial kicks from O'Riley and Traore.
From the spot, Ramos, Vitinha, the full-back, and Desire Doue all converted with composure for PSG to complete a 4-1 penalty win.
The record champions Paris Saint-Germain, who faced last season's Ligue 1 runners-up Marseille after achieving a league and cup double, have now lifted this trophy for the twelfth time in the last thirteen years.
