International audienceDuring the past two decades, French Universities System had to cope with opposite trends. On one hand the consequences of the implementation Plan “U 2 000”on the other hand the Bologna Process to make Europe the first Economy of Knowledge in the World. That’s why students’ behaviours to migrate are rich in lessons to understand how French University System works and main dynamics of its territories. Students’ migration between Cities and between Regions allow us to characterize the Phenomenon at different levels,as well as to highlight Paris as Special Place. Finally it allows us to consider Relationships between evolutions of University Trainings and Changing in Migration Patterns of Students.Au cours des vingt derniè...