Cozier-Duberry, who is 20 years old, spent last season on loan at Blackburn Rovers.
Brighton's football chief, David Weir, expressed his support for the move, saying that Cozier-Duberry is an exciting young talent with a good attitude.
He believes that this loan deal will give Cozier-Duberry the opportunity to play regular senior football at a high level with a good club.
Cozier-Duberry had a promising start with Brighton during the pre-season tour last year, but his progress was disrupted by an injury in the second half of the season.
However, Cozier-Duberry has made a good recovery and is now fully fit and ready for the new season.
Brighton is looking forward to watching Cozier-Duberry's progress with Bolton.