The geoheritage resources in Hainan Tropical Rainforest National Park are extremely important components of the natural resources and natural environment in the tropical rainforest. The geological environment of the geoheritage is fundamental to the biodiversity of the tropical rainforest. The scientific protection and rational utilization of geoheritage resources is one of the important contents of the construction of Hainan Tropical Rainforest National Park. Based on the comprehensive and systematic investigation and evaluation of geoheritage resources in Hainan Tropical Rainforest National Park, according to the specification for geoheritage investigation (DZ/T 0303-2017), this paper systematically summarizes the characteristics and distribution of important geoheritage resources in Hainan Tropical Rainforest National Park, and conducts a qualitative and quantitative comprehensive evaluation and classification of their scientific and aesthetic values. The research results show that there are various types of geoheritage in Hainan Tropical Rainforest National Park, with the main categories being fundamental geology and geomorphological landscape, including 4 categories: important fossil production area, important fossil origin category, rock and soil geomorphology, water geomorphology and volcanic geomorphology, and 6 subclasses: Paleobiota Fossil Site, Carbonate Rock Landform, Intrusive Rock Landform, Detrital Rock Landform, Waterfall, and Volcanic Rock Landform, with a total of 21 important geoheritage sites. Among them, there is 1 world-level geoheritage site, 17 provincial-level geoheritage sites, and 3 sub-provincial-level geoheritage sites. Through the evaluation of geoheritage sites in Hainan Tropical Rainforest National Geopark, it provides basic information and ideas for the protection and utilization of geoheritage resources in the National Park.