This study is a systematic and scientific examination of 1,268 Chinese-language public diplomacy research articles published between 1997 and 2022. By uncovering trends in development and theme and a variety of Chinese characteristics, this analysis fills a gap left by previous reviews focused on English-language research. Using a comprehensive coding scheme, we described the academic rigor, thematic evolution, and alignment with Chinese national interests and directives in public diplomacy studies in China. Our findings indicate a notable deficiency in academic rigor and theoretical depth, a strong political orientation toward national directives, and a shift from a global to a China-centric perspective. Numerous scholars described and introduced phenomena, primarily offering policy recommendations. Moreover, increasing alignment with official narratives and provision of state funding suggest a significant political influence on academic inquiry. These findings not only deepen understanding of public diplomacy research done by Chinese scholars but also highlight a need for stronger scientific methodology and theoretical exploration in future research.