The centre-back signs a long-term deal to move to Anfield after the Premier League club triggered his release clause, reportedly set at £36million.
Konate, who is currently away with the France squad at the European Under-21 Championship, will add further depth at a position where the Reds were beset by injuries during the 2020-21 season.
Virgil van Dijk, Joe Gomez and Joel Matip were long-term absentees for Jurgen Klopp, who leaned on the inexperienced pairing of Nathaniel Phillips and Rhys Williams during the run-in as Liverpool finished strongly to secure a top-four place.
"I'm really happy to be joining such a massive club like Liverpool," Konate, who turned 22 this week, told Liverpool's official website.
"It's a really exciting moment for me and my family and I am really looking forward to meeting my new team-mates, the staff and getting started on this new chapter.