In an interview with the former Ukip leader Nigel Farage, the French far-right leader said that the United Kingdom had found the 'keys to jail' represented by the European Union.
"We had been told that it was not possible to leave the EU, and the UK has just demonstrated that, when the people want it, we can set up the conditions to exit EU. So thank you for showing us the way out of this massive prison," Le Pen told Farage.
Le Pen, who leads opinion polls in the French presidential election campaign, said that she felt relieved after the Brexit vote. She also insisted that no British immigrants residing in France would face persecution, though she added that French people would come first when it came to job opportunities.
She also claimed to have been snubbed by the British Prime Minister, Theresa May. The British Premier declined to meet her citing a government policy to deal with her Front National party.
Le Pen, however, admitted not to have asked for a meeting with the British Premier.
The politician has taken loans from Russian banks but insisted that there was no possibility of her coming under pressure from Vladimir Putin's government if elected.
She skirted around questions about anti-Semitism within her party, asking to be judged on her reaction to it instead.
Farage had kind words to say about Le Pen, praising her for having a connection to the French people.