“…Mediatisation theory has been widely applied in studying the dynamics between media and society, especially in relation to politics, claiming that media has become an independent social institution that has its own logic and can challenge the logic of other social institutions (Hjarvard, 2008;Mazzoleni, 2017;Mazzoleni & Schulz, 1999;Str€ omb€ ack, 2008). This concept has also been used to discuss the interaction between digital media and political transformation in China (Sun, 2007;Sun, 2014;Meng, 2016;Zhang, 2019;Wang, 2020). Follow this path, the author explores how Chinese DV as a justice-seeking activity is mediatised based on three signals of mediatisation in the context of social media platforms concluded by Hjarvard ( 2014): (i) the platform has created public spheres for other social institutions, thus become the connecting node between them; (ii) its logic accommodates, as well as challenges the logics of other social institutions, thus become an integral part of them; (iii) (social)media-related personnel and processes became part of the organisational changes in other social institutions.…”