PSG has now claimed the season-opening cup on fourteen different occasions.
The Parisian giants required a dramatic leveler followed by a perfect penalty shootout to overcome their arch-rivals in Kuwait and capture a fourth straight Trophee des Champions victory.
The Champions League holders appeared to be sailing towards a comfortable triumph in the match between the Ligue 1 champions and the Coupe de France holders after the French winger found the net early on.
However, the southern French side struck two times late to take a shock lead. First, 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 events, the Portuguese striker snatched a vital leveler in the final seconds to send the match into a penalty shootout. PSG goalkeeper Chevalier then emerged as the hero, saving decisive kicks from O'Riley and Hamed Traore.
From the spot, Goncalo Ramos, Vitinha, Nuno Mendes, and the young talent all converted with composure for PSG to seal a 4-1 shootout victory.
The record champions PSG, who met last season's Ligue 1 runners-up Olympique de Marseille after completing a league and cup double, have now won this competition for the twelfth time in the past thirteen years.
