This study aims to investigate the perceived enjoyment and service quality of service robots with a user acceptance model to predict user acceptance of service robots in global markets. Service robots are currently providing various services in various fields. A total of 1014 users worldwide participated in an online survey to analyze our proposed research model. By using the method of structural equation modeling with maximum likelihood, this study finds that service quality and perceived enjoyment by users significantly affect the factors of usefulness and ease of use in adopting service robots for various tasks. Also, this study confirms the value of the traditional technology acceptance model. In other words, the present study suggests a new framework for understanding the perceptions of users about the emerging technology of service robots in various fields worldwide.