Cet ouvrage propose une approche interdisciplinaire de la question de l'islamisation de l'Asie centrale du milieu du VIIe siecle au XIe siecle. Il reunit des articles de specialistes de domaines tres divers, de la philologie a l'archeologie en passant par toutes les declinaisons de la methode historique, des champs iranologiques et turcologiques, pre-islamiques et islamiques. Islamisation est compris ici au sens global, et non pas principalement religieux, comme une serie de processus regionaux d'acculturation vers la culture musulmane medievale d'Asie centrale. This book dwells on the cultural change, which took place in Central Asia from the middle of the VIIth century to the XIth century. Its articles come from a wide range of fields (history, philology, archaeology...) and are written by specialists of Pre-Islamic and Islamic Central Asia, in its Iranian and Turkic components, in a demonstration of interdisciplinarity. Islamisation is not to be understood in a mainly religious meaning, but as a convenient way to name the regional process of acculturation towards the Central Asian Medieval Islamic culture.