Public digital cultural governance (GPDC) is a key driver for high-quality public digital cultural services and a crucial extension of China's modernization of national governance and Digital China strategy. Through literature review and online investigation, this article synthesizes the research hotspots, practice progress, and problems in GPDC during the 14th Five-Year Plan period. Despite notable achievements, theoretical gaps still remain, including the incomplete governance framework, the under-researched public participation mechanism, and the unfinished shift from "management" to "governance". Practically, problems are still existent in certain fields, such as the construction of data governance mechanisms and the evaluation of policy implementation. During the 15th Five-Year Plan period, it is suggested to enhance effectiveness of GPDC through institutional improvements and innovative mechanisms. This involves streamlining high-level coordination mechanisms based on a robust national institutional framework, exploring innovative systems for digital resources centered around Chinese culture, strengthening mechanisms for public participation in the integration of digital culture and smart tourism, ensuring that high-quality resources embedded with artificial intelligence reach grassroots levels, and innovating digital public cultural service mechanisms in rural areas.