This research is to probe into the correlation between media use and political participation with the unprecedented candlelight rally for impeaching of President Park Geunhye as its research objective. To this end, this study conducted a web survey and utilized path analysis, binary logistic regression analysis. Finding in the research reveals that political use of new media would cast a direct impact on the impeaching rally, it would outweigh other variables that also in?uence on impeaching rally such as social trust and political effcacy in its sway. Though political use of traditional media bungled in displaying an evident role on the rally, it significantly affected enhancement of political knowledge. At the same time, social trust would show a signifcant impact through path of participation to the impeaching rally whereas political trust stops short of imposing a conspicuous impact on impeaching rally. When it comes to sway imposed on the rally by varying media, Facebook, a representative social media, played the biggest role.