Nathan Paulin started the walk across the rope, which was 1968 foot long, from the first floor of the French capital's iconic landmark.
"It was great," he said. "It was less easy than I had imagined, and than what I already done, but it was beautiful."
The 27-year-old's stunt was part of a live performance festival organized by the Chaillot Theatre, and took four years of practice.
In 2019 Paulin completed a 492 foot high, 1673 foot long slackline walk between two skyscrapers in Paris' Le Defense business district.