The study examined the question of assimilation status Mayotte staff. It allowed especially to elucidate the process of substitution of the Civil Code of rules to local legal institutions initially Islamic and customary gasoline. While significant progress has been made over the past decade. Nevertheless, there are still gray areas that require imminent legislative action so that light be shed.Indeed, the right can not be satisfied uncertainties. For efficiency, it requires the articulation of clear principles. The rules must be clear that it poses to rule out any risk of arbitrariness. This is a prerequisite to facilitate the work of the judge to ensure compliance. It is also an armor with which each individual can wrap himself to feel safe. The legislator must be able to guarantee these basic needs own to found harmony in society. This journey through the maze of assimilation status Mayotte staff, was also an opportunity to discover the revival of this concept, and crisscross the horizon that presents itself. A now supported for the legislature, to explore all potential and restore its true meaning