This study aims to explore the information behavior of cultural documentary film workers. The objective of the study is to investigate the work tasks of cultural documentary film workers, the information types and sources adopted by them and their information use behavior. At the end, the study presents a pattern of information behavior and information interaction of the cultural documentary film worker with the real world and the film audiences. Document analysis is applied in the study in order to obtain an overview of the information behavior theories, the related studies on foreign and local humanity and art users, to settle the foundation for this research at the first place. Following a semi-constructed in-depth interview is conducted with selected cultural documentary film workers for data collection. Based on the analysis on the data collected, the study distinguishes four aspects which influence and compose the information behavior of cultural documentary film workers: work tasks, information needs, information types and sources, information use; and four stages in the information behavior course: exploration, formation, action and accomplishment, as well as the difficulties and contradictions which cultural documentary film workers are facing right at the moment. According to the findings, the research reveals the following facts on the information behavior of cultural documentary film workers : (1) Work tasks do effect the information behavior of cultural documentary film workers; (2) The information needs of cultural documentary film workers are a complex of mental status which changes continually; (3) The information types and sources adopted by cultural documentary film workers are various; (4) Cultural documentary film workers prefer to experience information personally in terms of information use ; (5) Internet has become an important tool for information seeking and interpersonal communication; (6) Cultural documentary film workers often browse information haphazardly. However, this browsing behavior is not limited by time and space as it is usually defined in earlier studies; (7) The information behavior of cultural documentary film workers is subject to individual; (8) Construction, communication, circulation, and feedback are the essential factors in the pattern of information interaction among the real world, documentary film workers and the audiences, as well as play an important role in the information behavior of the objects in this study.