Objectives : Recently, the total medical expenses of the korean oriental medical service in national health insurance is on the increase every year. Herbal medicines are one of the major methods of the medical treatment. But the expenses of these herbal preparations that can receive benefits from insurance system are decreasing. Methods : In this research, we obtained statistical data of the benefit states of herbal preparations in herbal heath insurance during year 2001-2003 from Health Insurance Review Agency. We analyzed top twenty main diseases in herbal health insurance and mainly used prescription in these diseases. Results : There were wide differences in the application of prescriptions among diseases. For example, musculoskeletal diseases occupied an important position and Ojucksan took more than 50 percentage. Conclusion : We hope that this study could be a basic data for improving the benefit system of herbal health insurance and further studies should be carried out subsequently.