After a Master of Law and modern literature, Florence Dauchez began her career in 1986 in the economics department of the newspaper Le Figaro as a trainee journalist, then became a reporter of foreign affairs for TF1.
After the failure of her bid for the presidency of CPAC (the Parliamentary Channel) in December 2002, Florence Dauchez joined the Franco-German channel Art in January 2004 to present until June 2005 the show Le journal de la culture, alternating presenting the show with Annette Gerlach.
From September 2005 to June 2007, Florence Dauchez hosted the show devoted to media + Clair, broadcast on the TV channel Canal +.
From September 2006 to June 2008, she also hosted the show À juste titre on I>Télé, the news and information channel of groupe Canal+.
In September 2007 Florence Dauchez became the chief editor and presenter of JT de Canal + [fr] , a newscast of about twenty minutes, broadcast on Canal + at 18:45 from Monday to Friday, with Charlotte Le Grix de La Salle [fr] replacing her from the presentation duties at + Clair.