[3] She began her career in written press in 1984 for the daily newspaper Nord Matin, especially as a justice columnist specialized in affairs at the Cour d'assises.
She stayed there until 1986 and then joined television on the regional channel France 3 Nord-Pas-de-Calais as a reporter for the daily news and political, economical and European programs of the redaction until 1989.
In 1992, Évelyne Thomas joined the channel France 3 Paris Île-de-France, where she became the main presenter of the 19/20, the daily news part of the early evening.
The program made rejuvenate the audience of the channel creating a real popular interest on the witness of anonymous people and its presenter.
The program even caused a debate at the National Assembly and then a cease and desist by the Conseil supérieur de l'audiovisuel.
In 2009, Thomas presented a daily magazine broadcast live on Direct 8 in the late morning titled Y'a une solution à tout !.
In September 2011, France 3 asked her to come back daily and live on the stage with Laurent Boyer and the entire team.