Abstract: At present, there are few theoretical research literatures on performance evaluation of public digital cultural services from the perspective of public digital culture.Factor analysis is adopted to extract the four core elements :basic factors, resource factors, service factors and efficiency factors, that affect the effectiveness of public digital cultural services, so as to build the performance evaluation index system of public digital cultural services on this basis.The principles of index system construction include human-oriented principle,operability principle, system optimization principle and dynamic adjustment principle.The evaluation index is designed with 4 first-level indexes ,including the four dimensions of guarantee conditions, resource construction, public service and service efficiency, 15 second-level indexes and 54 third-level indexes, in order to provide a reference for the performance evaluation of public digital cultural services.

Key words: public digital culture；service performance；evaluation indicators；index system