Accompanied by his wife Calista Flockhart, 58, the veteran actor, 80, was also joined by his co-star Phoebe Waller-Bridge.
Harrison was decked out in a tuxedo as he arrived for the premiere of the first Indiana Jones film since 2008.
The film sees Ford return as the globe-trotting archaeologist more than 40 years after his first stint in Raiders Of The Lost Ark in 1981.
Fleabag actress Waller-Bridger plays Helena Shaw, Indiana Jones’s goddaughter.
Ford accepted an honourary Palme d’Or as a tribute to his performance as Indiana.
This is the fifth Indiana Jones film with Ford first taking on the role as Indiana in 1981 in Raiders Of The Lost Ark.
The film, set for release on June 30, also stars Antonio Banderas, and has been directed by James Mangold.
Waller-Bridge cut a glamorous figure in a bold black gown with a fishtail skirt as she posed with the cast of the film on the red carpet.
The Fleabag star is now a big name in the film industry.
Harrison Ford said he was “deeply moved and humbled” as he received an honorary Palme d’Or at the Cannes Film Festival.
The veteran US actor, 80, was presented with the accolade on Thursday ahead of the world debut screening of his new film Indiana Jones And The Dial Of Destiny.
Ahead of the screening, audiences saw a highlight reel of the actor’s career before he took to the stage to present the film.
Becoming emotional, he said: “They say when you’re about to die you see your life flash before your eyes. And I just saw my life flash before my eyes.
“A great part of my life but not all of my life.
“My life has been enabled by my lovely wife, supporting my passion and my dreams and I’m grateful.”
Addressing the audience directly, he continued: “And I love you too.
“You’ve given my life purpose and meaning and I’m grateful for that. So grateful to have the opportunity to work with others like … Phoebe (Waller-Bridge) and Mads (Mikkelsen).
“I am deeply moved by this honour, and humbled – but I got a movie you gotta see. So let me get out of the way.”
Th fifth instalment of the Indiana Jones franchise takes place in the years depicted between Indiana Jones And The Last Crusade (1989) and Indiana Jones And The Kingdom of the Crystal Skull.
The latter film, starring Shia LaBeouf, also had its world premiere in Cannes in 2008.
The 2023 Cannes Film Festival has already seen appearances from other major Hollywood stars including Ethan Hawke, Johnny Depp and Dame Helen Mirren.
On Tuesday, the festival’s opening day, Michael Douglas was also presented with an honorary Palme d’Or – he too became emotional on stage