Doherty, 40, will star in her own WEtv reality series about her life with her fiancé, celebrity photographer Kurt Iswarienko, Entertainment Weekly reports.
"People will see a side of Shannen they never expected to see," says WEtv executive John Miller.
The unscripted show will go behind-the-scenes as the actress plans her big day – from wedding planners to her wedding dress – and renovates her Malibu home.
Perhaps she's taking a cue from former 90210 costar Tori Spelling, who documented her wedding-planning ventures with husband Dean McDermott on Oxygen's Tori & Dean: sTORIbook Weddings.
The still-untitled project is set to premiere in January, and the couple's big day will play out on the show's first season finale.