Based on generalization and summarization of 71 texts of public digital culture policy in China, this paper reviewed the public digital culture development in China, dividing the public digital culture construction into three stages: Co-Construction Stage, Sharing Stage, Coalescence Stage. This Paper then interpreted the policies from the perspective of macro-management, construction practices and operation support in co-construction and sharing stage. From the perspective of coalescence and innovation, this paper puts forward suggestions for the future direction of public digital culture policy formulation, including encouraging value mining and semantic integration of digital resources, attaching importance to mobile platform construction and promotion through mobile new media, and advocating the construction and discovery of multilingual resources.