In recent years，with the rapid spreading of social network in China，expressing thoughts and feelings timely in online platforms such as micro-blog，SNS，etc. have become a mainstream way. Thus，millions of users’ browsing data and posts for all time are contained in social networks，including the expressions about domestic violence，with the point of timeliness and completeness. Considering that the superiority of big data research on learning of general rules and discovering the internal law，as well as the openness of social media，we chose to carry out the investigation of domestic violence in Beijing area online. And the study is attempting to the analysis the influence of DV on its victims’ personality，psychological well-being，depression and social attitudes.