The Parisian club has now claimed the season-opening cup on fourteen separate times.
The Parisian giants required a dramatic equaliser followed by a successful spot-kick decider to overcome Marseille in the Gulf and secure a fourth straight Trophee des Champions title.
The European champions seemed to be sailing towards a comfortable triumph in the showdown between the French league champions and the Coupe de France winners after the French winger opened the net in the opening stages.
However, Marseille fired twice late to take a surprise lead. First, Mason Greenwood scored from the spot-kick, before Willian Pacho inadvertently directed the ball into his own net for an own goal.
In a remarkable turn of fortune, Goncalo Ramos snatched a vital equaliser in the final seconds to send the contest into a penalty shootout. PSG goalkeeper Lucas Chevalier then stood as the hero, stopping decisive kicks from O'Riley and Hamed Traore.
From the spot, Ramos, Vitinha, the full-back, and the young talent all converted successfully for PSG to complete a convincing shootout victory.
The record champions PSG, who met last season's Ligue 1 runners-up Marseille after completing a domestic double, have now won this competition for the twelfth time in the past thirteen years.
