Utilitarian motivation deals with the use of social media for goal-oriented, mission-critical, rational, and decision-effective user tasks. It has been widely validated and applied in research about utilitarian-oriented information system, such as workplace andstudent settings(Venkatesh & Brown, 2001). In our study, we assume that users care about the benefits which they can get from using social media platforms, in this process, users may get convenience in work and daily life, they feel the quality of their life are improved, and their gratification for this effect brings their utilitarian motivations. In this study, utilitarian motivation is composed of two factors, Perceived usefulness and Image enhancing.