Trade shows are held on the concrete and real platform and they have more advantageous value of exhibit marketing than online media such as homepage, SNS in the digital era. For this reason, this article focuses on the space, spatial activities of trade show. In this paper, space means the physical environment. With the review and analysis of related literatures, the conceptual framework of space and space activities in trade show is suggested under the environmental psychological theory. For this conclusion, the research is studied on the basis of literature analysis. Firstly, the facilities, so-called as convention & exhibition center are considered as an architectural viewpoint. After the historical review, this study tries to define the typology of trade show centers. Secondly, the trade show layouts by organizers are reviewed and the spatial elements of booths in exhibit marketing are lastly classified. As a conclusion, the article suggests a triangle model for explaining the spaces, spatial activities in trade show with the viewpoint of key stakeholders of exhibition industry.