The Parisian club has now claimed the season-opening cup on fourteen separate times.
Paris Saint-Germain required a dramatic leveler followed by a successful penalty shootout to get past Marseille in the Gulf and capture a fourth straight Trophee des Champions victory.
The European champions seemed to be sailing towards a straightforward win in the showdown between the French league champions and the French Cup holders after the French winger found the scoring in the opening stages.
However, the southern French side struck two times in the closing moments to seize a shock lead. First, Mason Greenwood converted from the spot-kick, before Willian Pacho inadvertently turned the ball into his own net for an own goal.
In a remarkable turn of events, Goncalo Ramos snatched a vital leveler in the dying moments to force the match into a deciding shootout. PSG goalkeeper Chevalier then emerged as the hero, stopping decisive attempts from Matt O'Riley and Traore.
From the spot, Ramos, Vitinha, the full-back, and Desire Doue all converted with composure for Paris Saint-Germain to complete a convincing penalty victory.
The record winners PSG, who faced last season's Ligue 1 second-placed team Olympique de Marseille after completing a domestic double, have now lifted this trophy for the 12th time in the past thirteen years.