The Tuareg circular migrations concern, in the area of Bankilaré (south east of Niger) a large part of labor men ; belonging the slave class. They go and return between their camp and Abidjan. Previously seasonal, their migration is distinguished today by a more and more longer period of residence in Abidjan, eight months to two years on average. If the migratory project, defined on the individual and family level, accounts for economic pressure, caracteristic of a poverty context in the starting area, is also based on a long migratory history, a old savoir-faire of mobility : the past of the shepherd nomads. The migratory project involves not only all the social group in the routes, but also all the places put in touch with the same routes...