本研究應用科學計量學方法分析1999年至2008年間，《Science》與《Nature》 期刊文獻之特性，研究樣本取自WOS資料庫，分別計有26,512與27,581篇書目資 料。對內容書目紀錄進行文獻量、年代、出版國別、出版機構、主題類型與關鍵 字、作者數及通訊作者等要項分析。期望本研究結果能提供欲投稿《Science》 與《Nature》研究學者參考，並精準掌握《Science》與《Nature》之發展方向。 / 本研究結果歸納如下：(1)《Science》與《Nature》文獻呈穩定成長，1999 年後其累積成長曲線符合線性成長。(2) 英文為《Science》與《Nature》文獻最 主要之寫作語文。(3) 《Science》與《Nature》主題類型近十年第一名皆為生物 化學與分子生物學，未來研究趨勢可能朝向動物學、環境科學與生態與微生物 學。(4) 《Science》與《Nature》關鍵字第一名皆為表達(Expression)，蛋白質、 進化論、基因與活化作用則在二至五名。(5) 《Science》與《Nature》之參考文 獻數，評述論文平均為62篇及82篇、研究型文章皆為26篇；被引用次數中， 《Science》與《Nature》評述論文平均數分別為212及270次、研究型文章平均為 114及112次。(6) 《Science》與《Nature》研究型文章主要以兩位以上作者為主， 分別佔97%、92%；新聞報導單一作者皆佔了97%，顯示不同性質文獻其合作事 實不同。(7) 《Science》與《Nature》作者機構國別以美國為主，日本為亞洲第 一；台灣則分別排名第31及32名。(8) 大學校院為主導科學學術傳播之重要機 構，哈佛大學、史丹佛大學、柏克萊大學等均名列前茅；台灣地區最具生產力之 研究機構為中央研究院，其次為台灣大學、清華大學、中央大學等。(9) 《Science》 與《Nature》文獻通訊作者主要以第一作者為主，通訊作者與作者排名呈依次減 少之現象。 / 本研究最後依據研究發現之結果，提出以下建議：(1)欲投稿《Science》與 《Nature》期刊之研究人員，應具備英語能力。(2)應改善國內研究環境，提升研 究水準。(3)資料庫製作之精確性有待提升。(4)定期對《Science》與《Nature》 文獻進行分析(5)未來可針對台灣地區之相關文獻進行進一步分析探討。 / This study applies Scientometric Analysis to investigate the characteristics of the journal literature in “Science” and “Nature” during the period 1999-2008. The 26,512 and 27,581 bibliographic records separately retrieved from WOS database are analyzed according to the numbers of literature, publication year, publication country, publishing agencies, subject area and key word, authors, and the reprint author, etc. This study attempts to be the resource for researchers who want to submit papers to “Science" and “Nature” to refer to, and accurately master the development of “Science" and “Nature.” / The results are as follwing: (1) The growth of literature in “Science” and “Nature” is stable, and the cumulated growth curve during 1999-2008 fits linear growth. (2) Most literature in “Science” and “Nature” is written in English. (3) Among this decade, Biochemistry and Molecular Biology are the major subject areas in both “Science” and “Nature.” In the future, Zoology, Environmental Science & Ecology, and Microbiology may become the research trend. (4) The most used one of keywords in “Science” and “Nature” is “Expression.” “Protein,” “evolution,” and “gene activation” are ranked within second and fifth. (5) Regarding the numbers of references in “Science" and “Nature,” averagely there are 62 and 82 references individually in review articles, and 26 in research articles. About the numbers of citedness, review articles in “Science” and “Nature" are averagely cited 212 and 270 times individually, and research articles in each journal are cited 114 and 112 times averagely. (6) The research articles in “Science” and “Nature” are mainly completed by two or more authors, 97% and 92% respectively. However, 97% of news reports are written by single author. It indicates that the cooperation situation is different in literature with distinct nature. (7) Both in “Science" and “Nature,” the country of author's affiliation is chiefly America, and Japan occupies number one in Asia. The rank of Taiwan is 31 in “Science” and 32 in “Nature.” (8) University predominates the scholarly communication of science, such as Harvard University, Stanford University, University of California, Berkeley, etc., all among the best. In Taiwan, the most productive institution is Academia Sinica, and followed by National Taiwan University, National Tsing Hua University, and National Central University. (9) The reprint author is mostly the first author, and the relationship between reprint author and the order of authors is corresponding. / According to the research findings, there are five suggestions: (1) To submit papers to “Science” and “Nature,” researchers should have English proficiency. (2) Improve the research environment in Taiwan to enhance research performance. (3) Upgrade the exactness of the production of databases. (4) Analyze the literature in III “Science” and “Nature” regularly. (5) Further examine and explore the relative literature in Taiwan in the future.