本文在简要地介绍了关键词检索的现状之后,重点从文献检索的角度分析了专利文献特点,并探讨了完善关键词检索的3个方面。最后,就专利文献检索领域关键词检索的发展趋势进行了简要的分析。 After briefly introducing the current status of keyword search, this paper analyzes the features of patent documents from the perspective of document retrieval and explores the three aspects of improving keyword search. Finally, a brief analysis of the development trend of keyword search in patent literature retrieval is made.