The article deals with at heoretical analysis of the main aspects of understanding the phenomenon of trust (such as: types, features, principles, structure, functions, manifestation of trust) and its role in human life in psychology. Authors note that common to interpretation of trust is implicit thought of the scientists about the apriori capacity of each person to define, who is worthy and who should not be trusted. The authors argueth at trust is acomplex attitude towards another person, man if ested in a subjectively justified confidence in the reliability and honesty of the person; in the expectation that they will not try to intentionally or consciously harmus. Trust is especially important for both full-valued interpersonal relationships, the functioning of society; is the foundation of a mentally healthy personality and their well-being