The Supreme Court will give its judgement on Article 50 on Tuesday to confirm whether or not MPs will need to vote on Brexit or whether Theresa May has the power to begin the European Union divorce process herself.
Last year the High Court rocked the Government by ruling Parliament must vote on when Article 50 is activated and Mrs May was not empowered to act under Royal Prerogative.
If the High Court ruling is upheld, the Ukip's only MP is fearful bodies such as the Welsh and Scottish Parliament's could be given the opportunity to further derail Brexit.
Speaking on Daily Politics, the 45-year-old said if the vote is passed just to the MPs he doesn't foresee a problem.
Douglas Carswell warned of the dangers of a Brexit betrayal
"I don't think that if the court exclusively rules that it is for Parliament to make any decision I don't see a danger," he said.
"In a worst-case scenario if you find a Parliament that resists the referendum then you simply call a new election and make sure you have a Parliament that agrees with the verdict of the people.
"I think the danger comes if the judges get it into their heads that it's someone other than Parliament that must make this decision.
"For example, if they give the Welsh Assembly or the Scottish Parliament or any other third party de-facto veto powers, that I think would trigger a serious constitutional crises."
Theresa May is expected to trigger Article 50 at the end of March
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Gina Miller is leading the challenge that has blocked Theresa May triggering Article 50 without the consent of Parliament, take a look back at Miller's background.
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Gina Miller has won the case to block Theresa May from Article 50
It's possible to call a general election and replace the House of Lords fairly straightforwardly
Next, the Clacton MP, who defected from the Conservatives to join Ukip in 2014, sent a fierce warning to the House of Lords.
He fumed: "Even if the House of Lords decided to throw a wobbly, it's possible to call a general election and replace the House of Lords fairly straightforwardly.
"If we could leave the European Union and make sure those who make our laws in parliament live under the law then that would be the icing on the cake wouldn't it."
Mr Carswell's comments come just days after Mrs May on Tuesday announced her Brexit plan in which she told the public that Britain would be leaving the single market.
The Prime Minister also confirmed she will give MPs a vote on the Government's final EU deal when it is agreed, most likely in 2019.