In this study, the motive factors of online users who share ‘photos’ on social media were explained from the viewpoints of social capital theory and visual sociology and the effect of these motive factors on the social network characteristics between bridging and bonding social capital was analyzed. In addition, the effect of trust and satisfaction(flow) with photo sharing on the bridging and bonding of social capital and the intention of continuous use were analyzed. As a result of the analysis, social motivation of social capital had a significant impact on social capital. Also in terms of visual sociology, narcissism and altruism have had a impact on social capital. Bridging and bonding social capital influenced trust and satisfaction (flow) and these two factors influenced continuous use intention. It was shown that bonding social capital affected the motivation for continuous use intention, while bridging social capital did not. These study attempted to study the positive expansion of social capital according to the evolution of SNS and the conversational method using images. It has implications in that it analyzed concretely in terms of social capital and visual sociology.