Producers Brian Grazer and Don Mischer announced the news today. Stone, who will be presenting at the Oscars for the first time, joins previously announced stars Tom Hanks, Tom Cruise, Cameron Diaz and Halle Berry.
Earlier this week, Angelina Jolie was also announced as a presenter.
Stone's summer movie The Help is nominated for four categories - 'Best Supporting Actress' for Jessica Chastain and Octavia Spencer, 'Best Actress' for Viola Davis and 'Best Picture'.
The young actress can be seen next in the much-anticipated The Amazing Spider-Man opposite Andrew Garfield.
The Amazing Spider-Man hits the cinema on July 3 in the US and July 4 in the UK.
Watch the trailer for The Amazing Spider-Man below: