A teledermatological service system among Korea, China and Austria has been developed and tested in this research. For successful design and establishment of a teledermatological service system, four elements were considered - networking among hospitals and participants, standard specification for teledermatological consultation, database for medical record, and design and implementation of software. In addition to the fundamental stationary system, mobile teledermatological service function using PDA was added to provide dermatologists with ubiquitous consultation service. It was evaluated and proved to be a feasible for teleconsultation system by the dermatologists participated in this research.