There's Only One Susan Boyle will feature an interview with the singer along with insights from her friends and family.
Boyle became an overnight sensation when she auditioned for Britain's Got Talent in 2009, singing I Dreamed A Dream from Les Miserables.
Her rendition of the song blew the judges away and went viral around the world.
The program will document Boyle's childhood in Blackburn, West Lothian, to the audition that launched her music career.
"I'm delighted to be sharing my story in this new documentary," Boyle said.
"My life changed overnight after Britain's Got Talent, and it has been an extraordinary and unexpected journey ever since.
"I hope the program reminds viewers to stay true to themselves and follow their dreams."
Heather Kane-Darling, commissioning editor at BBC Scotland, said: "Susan Boyle's story is one of the most remarkable and uplifting to come out of Scotland in recent decades.
"From a small town in West Lothian to stages around the world, her journey has inspired millions.
"This warm, honest and entertaining portrait of a truly unique Scottish talent will be a festive treat for our audiences."
Boyle's debut album, I Dreamed A Dream, was released in 2009 and went to number one in the UK.
She has released a further six albums with her most recent, A Wonderful World, coming out in 2016.
There's Only One Susan Boyle will air on December 31 in the UK.
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