Although mobile-related technologies are widely accepted in today’s society, mobile payment in Virtual Social Networks (VSN) is not among the most widely used mobile services. Throughout this paper analyzed the influence of e-word of-mouth (eWOM) and the perceived risk in the intention of adopting a novel mobile payment system based on SMS through social networking. Empirical results demonstrate how social influences, through subjective norms, utility, attitude, as well as ewoM and the perceived risk, determine its adoption. finally, the results obtained in this study reveal interesting implications for the diffusion of mobile payment systems in VSN.