Abstract
The aim of this contribution is to observe the solidarity of mutual aid associations in the liberal State of law. It's a complex and varied phenomenon where, however, mutual aid associations find common factors in some characteristics, such as the principle of equality , responsible participation, mutual aid to members only, the interclass nature of partnerships, the resilience feature. From the perspective of the public law science, mutual aid associations represent an example of relationships between State and society which is alternative to the individualistic one, and is accepted by the liberal-bourgeois Civil Code of 1865. A "model" that combines the centrality of the individual with the necessary relational dimension of individual well-being