Abstract: 【Purpose/significance】The knowledge of cultural relic is scattered, heterogeneous, and low relevance. This paper proposes an effective method of knowledge association of cultural relics resources,which is convenient for the development of related knowledge services and the development and utilization of cultural relics information resources.【Method/process】Based on the analysis of the sta⁃ tus quo of cultural relics information resource and Intelligent Question-and-Answer in collections, this paper proposes a method of knowledge relevance of cultural relics information resources based on Linked-data, and constructs a knowledge association model based on Linked-data. With the help of Linked-data technology, SPARQL and HTML to access and query the knowledge of cultural relics in the collection.【Result/conclusion】After publishing the knowledge of cultural relics in the collection of paintings in the form of Linked-data, the knowledge of cultural relics in the collection is fully aggregated, and the relationship between cultural relics and information resources is displayed in depth, and improved the efficiency of users with different needs in browsing cultural relics knowl⁃ edge and knowledge entity relationships of different granularities.【Innovation/limitation】From the perspective of linked data, an intelli⁃ gent question answering service framework based on multi-granular semantic query is proposed. The next step of research needs to ex⁃ pand the scale of data collection of cultural relics in the collection, and explore the deep-level association discovery of it.