For the further development and utilization of archives information resources and knowledge services,the environment of the archival information website must be optimized and should apply knowledge technology to perfect the website construction.This article analyzes the current situation of archival knowledge services and website construction,and discourses the basic principles of access to knowledge in archival information from the information organization and inference aspect.Then it studies the construction method of archival knowledge website system and puts forward Web-based knowledge retrieval mechanism and its function.At last,in order to verify the effect of the archival information website that optimized by knowledge technology,it makes empirical study for archival information website that combines the document multi-dimensional relation performance and knowledge-guided functions.