<p>This study proposes a new model based on Dramaturgical Theory and the Unified Theory of Acceptance and Use of Technology (UTAUT) to explore customers’ perceptions and behavioral intentions in human-computer interactions of smart vending services. Data collection consisted of 329 valid questionnaires, and the analysis of structural equation modeling was employed to test the hypotheses. This research provides evidence that the representation of smart vending machines and the actions of customers have positive influences on customers’ technology acceptance and revisit intention in smart vending services. This research also found that the environment of locations only affects performance and effort expectancy, while the benefit of core service has no influence on customers’ technology acceptance of smart vending services. The findings of this research enhance the knowledge of human-machine interactions in smart interactive services and also provide a thorough exploration of customers’ perceptions and behavioral intentions. This study contributes to the literature by expanding Dramaturgical Theory and UTAUT. The findings also contribute to the industry, as this study provides a reference for reshaping the process of human-computer interaction in the smart retail industry to create an innovative way to attract customers.</p>