讨论国家图书馆缩微文献收藏规划及重点。针对读者检索缩微资料的困难指出编目工作的不足和改进方法,同时对缩微资料收藏和阅览实践中的问题提出建议。 Discuss the national library microfilm collection planning and focus. In view of the difficulty of the reader to retrieve the microfilm data, it points out the problems of the cataloging and the improvement methods, meanwhile, it puts forward some suggestions on the microfracture data collection and reading practice.