The achievement of "Study onCyperaceaeResources in Hainan and Its Taxonomic Revision" led by Dr. Liu Guoduo of CATAS won the only one Special Prize of Hainan Natural Science Award in September 2020. The authors conducted a comprehensive and systematic study onCyperaceaein Hainan Province for 22 years. The distribution ofCyperaceaein Hainan is divided into five types for the first time; new members ofCyperaceaeare added; the first graphic retrieval tool monograph ofRecords of Hainan Cyperaceaeis published to complete the systematic retrieval and revision of Hainan Cyperaceae. They also carried out feeding and medicinal research and publishedHainan Cyperaceae Feeding FloraandHainan Cyperaceae Medicinal Plants, which laid a solid foundation for the development and utilization of Cyperaceae.