Purpose- The purpose of this study is to recognize the importance of the characteristics of exhibition & convention e-WOM and identify the influential relationship of these information characteristics on attendees'' attitudes and behavior intention. Design, data, and methodology- The empirical analysis were presented based on the theory of characteristics of e-WOM information, attitudes, behavior intention of previous studies. In addition, a research model and a research hypothesis that logically organizes the causal relationship between the constituent factors were designed. Result- The results show that consensus, remindness, neutrality had significant effects on cognitive attitude, emotional attitude and behavioral attitude, respectively. Also, cognitive attitude and affective attitude of visitors at exhibition & convention significantly affect behavior intention. Consensus and neutrality had significant impacts on behavior intention as well. Conclusions- Exhibition & convention particularly involves intangibility. Therefore, marketing employees need to make efforts to fully understand characteristics of exhibition & convention e-WOM information, provide information to visitors and potential visitors, and constantly manage them to improve marketing strategy.