This study explored tourist`s host-guest interaction to identify the influence in the of tourist`s perception of authenticity. To achieve this purpose, JeonJu Korean-style house village was selected for the survey. The questionnaire survey was conducted by 320 tourists who visit JeonJu Korean-style houses village during April 26th to 28th, 2012. An exploratory factor analysis on 12 items of host-guest interaction suggested three dimensions: verbal interaction, non-verbal interaction and temporal interaction. In addition, a cluster analysis yielded two groups: a low level group of host-guest interaction and high level group of host-guest interaction. Results showed that there were significant statistical differences between the high level group of host-guest interaction and low level group of host-guest interaction in the perception of two types of authenticity(i.e., object-based authenticity, existential authenticity). But there were no statistical differences in tourist`s behavioral characteristics. Research implications were also mentioned in the conclusion section.