This study analyzed the authorship tendency of the authors in the specific organizations. The SCI articles of the authors in H medical center, from 2000 to 2008, were extracted and indexed by the authors. The authorship tendency was analyzed on transience and continuance. As results of analysis, authorship tendency showed continuing tendency not transient tendency. Specifically, the publication rate by new authors was high as the average 39.17% but the publication rate by pre-existence authors, which consisted of the publication rate(16.83%) of reclosing authors and publication rate (44%) of the series author, was relatively higher as the average 60.83%. Also, the extinction author rate of new authors was relatively low as the average 28.2%. the non-flexible publication probability by the author in the specific year was very high as the average 76%. As a result, this study would be used as basic data for the research result management of the organization.