The central idea of this study is based on the theory of social practice and Bourdieu's concept of the transformation of capital within the digital communications environment. For Bourdieu, the positions of actors in various social fields correspond to the sizes of the different forms of capital that they possess and that individuals can accumulate (economic and cultural). It is convertible, in certain circumstances, into economic capital and can be institutionalized. Hence, the subject of the study crystallizes in seeking to explain the work of identity in the digital environment for university faculty assistants (on social media) in re-transforming capital. Within the framework of Bourdieu's practice theory concepts