The album, called "Lioness: Hidden Treasures," will be comprised of previously unreleased tracks, alternative versions of existing hits and brand new songs, including Winehouse's final studio recording with Tony Bennett, "Body & Soul."
"Lioness" is the brainchild of Winehouse's longtime musical partners, Mark Ronson and Salaam Remi, according to Island Records. Ronson and Remi hatched the idea after Winehouse's death, having spent much time listening to her recordings.
A donation of 1 pound ($1.60) from the sale of each album in the U.K. will go to a foundation to assist disadvantaged children and young adults set up in the artist's name following her death.
Amy Winehouse died on July 23 at the age of 27. Last week, a British coroner ruled the Grammy-award winning singer died from accidental alcohol poisoning.
The Associated Press contributed to this report.