The purposes of this study were to examine the factors affecting the avatar addictive buying behavior. The survey subjects were 220 females and males who had purchased avatar items in the internet. For data analysis, descriptive statistics, factor analysis, t-test and regression analysis were used. In the results, first, the frequency test of quantity of owned items, payment method, main using site, frequency of purchase, and price of purchase was conducted to reveal the avatar addictive buying behavior. Second, the avatar addictive buying behavior was classified into three factors: conspicuous addictive, psychological addictive and habitual addictive. Also, the pursuit of pleasure was classified into three factors: superiority, pastime and enjoyment. Third, flow, vicarious satisfaction, stress, superiority and pastime affected avatar addictive buying behavior. Based on these results, fashion marketing strategies and implications regarding avatar addictive buying were suggested.