Many people think that mental pathology connected with maghrebian migration into France is coming from a psychopathology more or less specific to migration and maghrebian origin. But, the migrant worker, when sick, asks directly or not the question of his own identity. Authors insist on obligation to take in count the sociological, psychological and cultural characteristics of migrant's problems, and also the ways of changing concerning both his own imago and his relationship to others. The concept of identity gives us facility to integrate all these elements.