In this paper, we discuss the social impact of projection mapping technology from technical and utilization’s points of view based on existing researches regarding social impact for other technologies and the existing report for projection mapping. Especially we focus on how this technology has socially and environmentally changed our lives. We firstly survey the articles in the newspaper which were published from 1985 to 2015 and some latest technical papers. After that, we analyze them. According to our survey and analysis, we have found some interesting characteristics for projection mapping. As a conclusion, we show that projection mapping is deeply related to the reconstruction of a declining rural area.