Mobile contents mean all contents that could be served by mobile terminals. The mobile contents are categorized by three areas, which are communication, information and entertainment. Since the various mobile contents have own characteristics, there are differentiations among the service success factors according to types of the contents. In this paper, we do not only derive important factors that influence success of mobile contents services, but also analyze how the factors influence the success of mobile services. We also analyze whether measures of the factors might differ significantly among the types of mobile contents services.