The purpose of this study is to segment convention market based on their preferred convention tour activity and to investigate the determinants of participation in convention. The data for the study were collected from Participants of 2009 JCL, and 330 valuable data were applied for the analysis. For market segmentation of convention, factor analysis and duster analysis were applied and multinomial logit mdel was used to investigate the determinants of participation of convention. From the results of the study, four types of preferred convention tour program were identified; preference of recreational activity, event/cultural experience, native culture experience, urbiculture experience. "From this, four segments of convention market were identified: group for passive participation in tour program, active participation III tour program, participating III event/cultural activity, and participating in naive cultural activity. Determinants of these four types of market segments were investigated from socio-economic variables, tourism-related variables and characteristics of convention.