Chisholm, 39, who is a huge fan of the show, said she wanted to do it for her three-year-old daughter Scarlet, reported Daily Star.
"Scarlet loves dancing and she loves Strictly. I think I'll have to do it just to make her proud. I'm a fan too, so you never know," she said.
The singer would be the second Spice Girl to take part in the show after Emma Bunton finished third in 2006.
Newly-single Chisholm has been juggling her solo career with being a lone parent after splitting from Thomas Starr, her boyfriend for the past ten years.