The purpose of the study was to investigate whether customer perception on internet fashion shopping mall characteristics influences positive emotion on internet shopping and relationship formation. For data collection, a questionnaire was administrated from February 20th to March 3th in 2012 to 362 adults who have purchased the products from internet fashion shopping mall. The analysis explores the effect of internet shopping mall characteristics on positive shopping emotion and relationship quality. It also tests the mediation effect of positive shopping emotion for the influence of internet fashion shopping mall characteristics on relationship quality. The results are as follows. First, the perceived internet fashion shopping mall characteristics had positive effects on relationship quality. Second, the perceived internet fashion shopping mall characteristics had positively effects on positive shopping emotion. Third, the effect of positive shopping emotion had positive effects on relationship quality. Fourth, the effect of perceived internet fashion shopping mall characteristics on relationship quality, mediated by positive shopping emotion, was shown to be none.