Keywords: prosody, text-to speech synthesis, syntax. The goal of our communication is to present a set of intonosyntactic rules which has been elaborated according to phonetic and linguistic constraints and to be used in the text-to-speech synthesis system developed at LIMSI. The first stage of this work - an experimental phonetic approach of French intonation - is described in [Beaugendre 92]. We will focus this communication on the linguistic aspects of the French intonation and there acoustic correlates.