As indicated in the Erasmus + application, the vocation of the project through the Department of International Relations is to promote the mobility of our students and staff (teachers and other professional categories). These mobilities are developed in connection with the territorial base of the institution and the opportunities employability of learners concerned. Indeed, the Greater Region: Saar - Lor - Lux - Rhineland - Palatinate - Wallonia French and German-speaking Community of Belgium, is an entity that works for economic development, trade practices, education, and in a way more generally, on socio-economic policies linked to these territories. The base of the strategy of the Institute to guide the project, based on collaborations linked primarily with that entity. In addition, some faithful or old partnerships, beyond these territories, as Artevelde Hogeschool - University College Ghent in Belgium, ASH Berlin in Germany, the High School Fribourg in Switzerland have been requested since they have continuously hosted a student of our contract research institute. Knowing that we see in our students participating similar patterns from one year to another for departures within the European area, that is to say students from border regions to the countries covered (Alsace, Champagne -Ardenne and Lorraine). They have more or less relations with the countries chosen for mobility and want to develop opportunities, including for future employability or a link to meet "the other" in all its dimensions: social, economic, politics, etc. Let us recall that we still train in our preparation of future social workers for the vocational route leading on level III state diplomas while in the European partner countries (welcoming our learners) form their social stakeholders through university level track II or I. The whole dimension of meeting, comparison, co-construction in practice and in teaching, testing under immersion, participates in the construction and development of their future role social actor, and a European citizen in society. Besides mobility studies, learners went on mobility training. The host countries are Germany, Belgium, and Luxembourg. The Institute explains these mobility choices as follows: learners welcomed in our establishment have no particular appetite to experience of European and international mobility. These studies build their mobility projects or internships with the major objective of employability that will improve the economic and physical conditions of each. If these partner countries gladly welcome these future professionals thanks to the professional quality of degree programs followed in our Institute. However, it is necessary to acknowledge the will of some learners who wish to experiment mobility with aspirations in mind Erasmus and close to our intercultural values, exchange and skills development. Thus, some European and French employer partners who share these values and objectives proposed by Erasmus were associated, firstly, in the home of the outgoing and incoming interns and secondly in the co-construction of international projects third countries that involve the participation of several European partners. For example, Carrefour and CMSEA Association were able to develop projects focusing on European citizenship, exchanges between users and professionals, and this in part, by the active participation in these projects trainee mobility in these structures. Finally, the teaching and professional mobility conducted in 2015 showed the urgency to renew the strategic policy of the Institute for the consideration of the issue of European citizenship as the project of the establishment and in the teaching projects each of the formations.