A survey was conducted to evaluate the library of the National Institute of Health Research and Development from October to December 1984. The result shows that the library has a big collection, i.e. 4.498 titles of books, 504 titles of journals, 617 titles of research reports, 512 titles of proceedings of meetings, and 1,328 titles of other collections. However, the utilization is low. An average of 3.5 people attending the library a day. Only 49% of the total staff of the Institute have ever borrowed books from the library, and only around 35% benefited the literature search service. The causes of this low utilization were identified as : inadequacy of the collection (in term of subject), inefficient physical facilities of the room, improper organization of the stacks, unsatisfying services of the librarians, and lack of information on the library services in users side. To improve the function of the library in health research and development, it is suggested to reorganize the library and increase the users education activities.