Dorries has been suspended by the Conservative Party for agreeing to take part in the show, apparently neglecting her duties as an MP.
Justifying her time in Australia, the 55-year-old politician said: "I know there will be a backlash that I am going on this show, but I would like to point out that I have never before taken a week away in Parliamentary time whereas a lot of other MPs have.
"I am the first politician to go on the show. A lot of people don't vote and if they can see I am a normal mother who comes from a poor background and who didn't go to a posh school, they may think they can be a politician too. Maybe they will trust us more."
Dorries, who listed her dream campmate as Winston Churchill, claimed that her experience in Westminster would help her cope in the jungle.
"Game playing, tactics, strategies. In Westminster you achieve everything by vote. This is the same. The parallels are huge," she said.
"Politics is a very difficult and a hard world. Nobody realises that until they get there and it takes a certain amount of front, especially as a woman, to survive it."
Speaking about what her fellow MPs may think about her taking part in the show, she said: "I am a thorn in [David Cameron's] side. He will be relieved."
I'm a Celebrity starts on November, Sunday 11 at 9pm on ITV1.
Dorries will be joined in the jungle by darts player Eric Bristow, Corrie's Helen Flanagan, boxer David Haye and actor Colin Baker.
I'm a Celeb stars in pictures: