The 23-year-old pop star will start work on the tome in January and it will tell the story of her life from her childhood through to her incredible success with N-Dubz and her landing a judging role on `The X Factor`.
A source told the Daily Mirror newspaper: "She has an incredible story to tell - some of which has never been written about - and it-s a unique opportunity to set the record straight.
"Tulisa`s famed for being open and up front, saying it as she sees it. There will be no skeletons left in her closet. Three major publishing houses are all desperate to sign her up, not least because of the success rate of books by former `X Factor` judges."
The book will reveal details of her childhood growing up in Camden, north London, with her mother Anne who had bipolar disorder and her difficult teenage years with tales of her forays into shoplifting and drug use.
She has agreed for photos from her youth to be published.
Tulisa will also reveal details of her relationship with her N-Dubz bandmate Fazer and will lift the lid on what it`s like backstage on `The X Factor`, which could include details of her alleged spat with Kelly Rowland.
The book is set to be released at the time `The X Factor` returns to screens in 2012.