The two men also played together at Manchester United, and Blanc wants to have the often eccentric former 'keeper at his side when the qualifying campaign for Euro 2012 begins.
However, Barthez, who left the Red Devils in 2004 after losing his place to Tim Howard, has refused to become the main goalkeeping coach for Les Bleus. Instead he will be part of the team as a technical adviser.
"Both of France's goalkeepers need support for the next two or three years. I will go with them alongside Laurent," said Barthez, according to The Daily Mail.