The healthcare laws and healthcare system, which includes healthcare delivery system and network hospital and attending hospital system etc., have much influence on the application of Internet. Whereas government-driven healthcare delivery system had little desirable effects including increased efficiency in patient care and balanced development of various types of medical service facilities, the private hospital network was successful with the help of information interchange. The network hospital is a kind of private hospital network for patient delivery preparing for the current healthcare management issues such as the separation of pharmacy and clinic and expansion of DRG. Network hospitals has been used the internet to transfer the information of patients. Internet is not the main success factor of the network, but the it may not be successful without Internet. The attending hospital system is in it's early stage in Korea. As the number of participating physician increases, the need of information interchange will be increased. The future of the internet healthcare delivery system would be composed of web application and databases, ASP, team approach to assist physicians. The major obstacle of the system is the technical level of information system in medium and small sized hospitals. The governmental financial assistance is needed in that hospitals. The most important issue is the standardization of information. The participation of KMA in standardization is needed.