Katie - who is mum to Harvey, nine, Junior, six and Princess, five - first won the title five years ago, and has beaten off stiff competition from new mum Amanda Holden, TV's Holly Willoughby and Victoria Beckham to take the Foxy Bingo title again.
"Being a mum is one of the most rewarding jobs in the world but it can also be very hard work - especially juggling a busy career with three kids," said Katie as she picked up her award.
"Even when you have friends and family to support you, it makes a huge difference to hear someone say you're doing a good job and winning Celebrity Mum of the Year for the second time feels like a huge triumph, especially because it's chosen by the public."
Her former husband Peter Andre - who is dad to Junior and Princess - is a current Celebrity Dad of the Year.
This year's competition has been surrounded by controversy, with Stacey Solomon - last year's champion - being dropped from the shortlist after she was photographed smoking seven months into her second pregnancy.
There were also a fair few surprises in the shortlist too, with Natasha Giggs, who had an affair with her husband's brother making the cut (yes, really) closely followed by Peaches Geldof, who of course isn't actually a mum yet...
See the other 'celebrities' Katie beat in our gallery below...