The Parisian club has now secured the prestigious cup on 14 separate occasions.
The Parisian giants required a stoppage-time leveler followed by a successful spot-kick decider to get past Marseille in Kuwait and secure a record-extending fourth consecutive Trophee des Champions victory.
The Champions League holders appeared to be sailing towards a comfortable triumph in the showdown between the Ligue 1 winners and the French Cup winners after Ousmane Dembele found the net early on.
However, the southern French side struck two times in the closing moments to seize a surprise lead. Initially, Mason Greenwood converted from the spot-kick, before the defender unfortunately directed the ball into his own net for an own goal.
In a remarkable twist of fortune, the Portuguese striker grabbed a crucial equaliser in the final moments to send the match into a penalty shootout. The Parisian shot-stopper Chevalier then stood as the hero, saving crucial attempts from O'Riley and Hamed Traore.
From the spot, Ramos, Vitinha, the full-back, and the young talent all scored with composure for PSG to complete a 4-1 shootout win.
Now 14-time winners Paris Saint-Germain, who faced last season's Ligue 1 runners-up Marseille after completing a domestic double, have now won this trophy for the 12th time in the last thirteen years.