本研究旨在探討圖書資訊學領域期刊學術傳播速度，以2005年版至2012年版JCR收錄之30種專業學術期刊為研究對象，分析10,287篇原始文獻，並採引用文獻分析法，計算初次被引用速度。研究結果顯示，所有文章平均初次被引用速度為18.79個月，已被引用文章為14.26個月；在初次被自我引用方面，期刊的學術傳播速度可能會受被自我引用狀態的影響。而出版機制方面，非OA文章初次被引用速度領先OA文章，提供電子預印本的期刊初次被引用速度明顯較傳統出版模式快。根據上述研究結果，本研究建議引用尚未正式出版文章時，作者應依據引用規範，於參考文獻著錄電子預印本相關標示；此外，為使文章在學術傳播上不受到限制，期刊出版者應鼓勵作者投稿至OA期刊或以OA文章方式出版。

This study mainly explores scholarly communication speed of journal articles within Library and Information Science based on the first-citation, defined as the time between publication and firstcitation. The study focuses on the distributions of first-citation speed, first self-citation, and publication patterns. It chooses 30 scholarly journals which are indexed in the category of Information Science & Library Science (IS & LS) in the Journal Citation Report 2005-2012 and analyses 10,287 articles. This study adopts citation analysis to calculate journal articles first-citation speed and journals averaged first-citation speed. Particularly, first-citation differentiates between all articles and citing articles. Results show that the average first-citation speed is about 18.79 months within; for citing articles, it is 14.26 months. In addition, first self-citation may influence on scholarly communication speed. In terms of publication mechanisms, OA articles are slower than non-OA article. The journals with in press mechanism are significantly faster. Based on the results, there are some suggestions as follows. When citing unpublished articles, authors should follow reference guide and note “in press” or related terms in the reference. Besides, for the purpose of scholarly communication unrestricting, journal publishers should encourage authors to submit manuscript to OA journals or publish OA articles.