為深入了解國家檔案使用情況，針對檔案館藏與調閱情況之研究是必要的，可幫助了解館藏強弱、使用情況、使用者背景、使用者需求等，有助於評估館務現況、規劃未來發展。 本研究探討國家檔案之使用者與檔案使用情況，透過調閱紀錄分析與使用者深度訪談，在檔案使用者部分，了解檔案使用者的特性與族群分布，及其背後的動機、需求與尋求行為等差異，而在檔案館藏使用情況部分，能了解檔案館服務項目、館藏比重、館藏使用程度與待開發潛在使用者等。 研究結果顯示，國家檔案使用者背景相當多元，而國家檔案館藏量與調閱量不必然呈現正比，且國家檔案既有館藏與徵集方向仍有調整空間，另外使用者使用國家檔案時易遭遇一些困難。 本研究建議未來需針對細節深入統計使用者背景、加強徵集使用因數高之檔案主題、均衡館藏主題分布、針對使用者各項需求調整國家檔案徵集類型與範圍、以及試圖降低使用者使用檔案時的不便等。 / In order to understand the use of the national archives, research on archival collections and situation of access is necessary. It can help us to understand the strengths and weaknesses of the collections, user background, user requirements, etc. It also help us to assess the status of collectional quality and plan for the future development. This study used records analysis and user interviews to investigate the use conditions and users of national archives. The characteristics, groups, and motives behind demanding and seeking behavior of users were analyzed. Besides, the services, the proportion of collections, use level of collections, and the potential users of arcives were investigated. The results of the study show as follows: (1) The user background of national archives is quite diverse. (2) The amount of archival circulation and collection is not proportional. (3) National archives collection development need to adjust for meeting users’ need. (4) Users encounter some difficulties when they accessed the national archives. The findings of the study may provide suggestions as below: (1) Users background should be compiled statistics further. (2) To intensively collect the national archives which have high use factor. (3) To balance the theme of national archives. (4) To adjust the type and scope of the national archives meet the needs of users. (5) To reduce the inconveniences of uses when they use the national archives.