A woman tried to protest whilst Ms Le Pen was speaking on stage to the party faithful during a rally by the far-right party ahead of Sunday’s first round of presidential voting.
However, the woman was dragged off the stage by bodyguards.
According to the organisation’s website: “Our Mission is Protest! Our Weapon are bare breasts! And so FEMEN is born and sextremism is set off.
“FEMEN is an international women’s movement of brave topless female activists painted with the slogans and crowned with flowers.
“FEMEN female activists are the women with special training, physically and psychologically ready to implement the humanitarian tasks of any degree of complexity and level of provocation. FEMEN activists are ready to withstand repressions against them and are propelled by the ideological cause alone.
“FEMEN is the special force of feminism, its spearhead militant unit, modern incarnation of fearless and free Amazons.”
It is not the first time the feminist group has tried to disrupt an event organised by Marine Le Pen.
A topless protestor was carried out by three security guards at a press conference by the right-wing leader in February this year.
She had writing on her torso and repeatedly yelled: “Marine, fake feminist.”
Following the incident, Femen took to its Facebook page to criticise the politician.
The organisation said: “Nothing in the programme of Marine Le pen promotes the empowerment of women, no proposal was raised to further equality between the sexes.
“Le Pen is a fictitious Republican, she’s neither feminist, nor secular, nor for the defence of human rights… yet she is a candidate for the presidential election!”