The Parisian club has now secured the prestigious 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 secure a fourth straight Trophee des Champions title.
The Champions League holders appeared to be sailing towards a comfortable win in the match featuring the French league winners and the French Cup winners after Ousmane Dembele found the scoring in the opening stages.
However, Marseille struck twice in the closing moments to take a shock lead. First, Mason Greenwood converted 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 dying seconds to send the match into a penalty shootout. PSG goalkeeper Chevalier then emerged as the hero, saving decisive attempts from Matt O'Riley and Traore.
In the shootout, Goncalo Ramos, Vitinha, the full-back, and the young talent all scored with composure for PSG to complete a convincing shootout win.
The record winners Paris Saint-Germain, who met last season's Ligue 1 second-placed team Olympique de Marseille after achieving a domestic double, have now won this trophy for the twelfth time in the last thirteen years.