The “Samusocial” method, implemented by Xavier Emmanuelli in 1993, proposes and develops a new approach in the fight against social exclusion. This method originates from the philosophy of the SAMU (medical mobile emergency). It consists of "going to" people in situations of extreme exclusion and is characterized by:

The Samusocial offers comprehensive care, combining medical and psychosocial aspects. Beyond immediate and unconditional assistance, it helps people to reacquire the rules of life that will allow them to be autonomous: rules of the body, time, ... the other.

To be still more effective and meet the growing phenomenon of urbanization, which generates worldwide social exclusion, the Samusocial expanded its scope and its missions. Its method is applied to international megacities (creation of the Samusocial International in 1998) and large cities of France (founding of the National Federation of Samusocials in 2001).

The Samusocial has adapted to different contexts and the continuing evolution of exclusion, through the development of missions in four areas: