The article examines the epistemological status of the phenomenon of social trust. The research purpose is to explicate the concept of trust in connection with the fundamental transformation of socio-historical practice and social knowledge. The priority methodological task is to study the problem within the framework of the system methodology evolution and consider the parameters of trust in the intervals of non-classical and post-non-classical systems analysis. The study is based on a philosophical-scientific paradigm approach. Epistemological situations of autonomous and conventional application of different paradigms are modeled in the study of the phenomenon of social trust. In non-classical systems analysis, social trust is an interna...