In this research, I have focused on the ceramic object from Fes as a contextual reference in the contemporary era from 2012 back to the XVII th century. The analysis crossed together with texts and production sources, both on site and with museums or private collections, enlightens us about Fes's ceramic productions over the last three centuries. The first part is dedicated to politic and social factors of the changes in the organization of the art crafts corporations that influenced the productions for over a century and a half. The second part carries on semiology of the decor on ceramic from 1835 back to 1675 (Alawite period). First the research covers the shapes inspired from alimental functions and social codes, then on the elements corresponding to numbers, and transcripts drawn according to some hidden codes. The thesis concludes on the specificities of spiritual codes in ancient productions that have gradually disappeared upon the arrival of the European industrial and economic codes.