Abstract: ［Purpose/Significance］The trend of digitalization has produced massive cultural heritage data resources, therefore, reasonable classification has become the key to scientific management and effective use of cultural heritage big data.
［Design/Methodology］Based on the basic theory of cultural heritage and big data, this paper proposed the concept and characteristics of cultural heritage big data, and discussed the status of cultural heritage information classification according to relevant researches.［Findings/Conclusion］It is suggested that the focus of classification should be transformed from a specific category of cultural heritage information to cultural heritage big data. Besides，problems such as single dimension, coarse granularity and improper category settings in the existing classification also need to be solved.［Originality/Value］Based on characteristics of both cultural heritage and data, this paper takes the cultural heritage big data as the research object and develops a set of twodimensional classification framework by applying the faceted classification method.

Keywords: Cultural heritage, Big data, Classification framework, Data classification, Faceted classification method