The millennial generation is considered a golden generation in the world and Indonesia, in particular, that is capable of being the driving force of changes. They want everything to be fast and easy, especially transactions. Mobile payments provide a fast and easy solution for making payments wherever and whenever. The main objective of this research is to study the factors that influence the acceptance of mobile payment use in the millennial generation using the unified theory of acceptance and use of technology model. Questionnaires were distributed through Google Form. The participant in this study amounted to 125, which were chosen through purposive sampling method. Structural equation modelling -partial least square regression and SmartPLS 3.0 was employed as the measuring tools. Results of this study show a significant positive effect of performance expectancy, effort expectancy, and social influence on behavioural intention. Moreover, facilitating condition and behavioural intention on use behaviour millennial generation tend to use mobile payments as their payment instrument.