In this study，the social impact of social videos was assessed by using second-hand data analysis，virtual ethnography，and in-depth interviews. It was found that social videos in China have created new social spaces and social relationships，and produced the abundant participatory culture，constructed a new marketing scenario，and shaped a new media landscape. However，due to excessive entertainment and capitalization of the social video industry in our country，negative social consequences have occurred. The path of governance of social video communication ecology includes：constructing an effective real-time monitoring system，urging social platforms to strengthen social responsibility，enhancing users’ awareness of self-regulation，and establishing a more effective national governance policy system.