Abstract: China is rich in plant species, and the conservation of plant diversity is important for the promotion of ecological civilisation. Using CiteSpace software, 985 articles on plant diversity conservation in CNKI database between 2004 and 2023 were analysed. The research on plant diversity protection has gone through several stages, and each stage with unique research focus and achievements, which reflects the continuity and dynamics of this field. Although the number of literatures is abundant, the cooperation between academic teams is not lose, and the collaborative network between research institutions is fragmented. The research topics are diversified with the development of policies, but the core issues have always been of concern to the field. Involved in ecology, biology and geography and other disciplines, the research value gradually shifted from theoretical discussion to practical application. In recent years, there was an increase in the reflection on real-world issues, highlighting the close connection with real-world problems. In the future, the research on plant diversity conservation may focus more on solving practical problems and promoting multidisciplinary and multi-technical cooperation. In-depth research on philosophical foundations, basic theories and real-world problems will provide support for policy improvement and practice. This bibliometric analysis provides a new perspective for research and reveals the development trend and future direction. Strengthening cooperation and deepening research is the key to promote development. In this paper, based on CNKI database, the research status and trends are sorted out, which provides reference and enlightenment for researchers and policy makers.