Taiwan's terrestrial wild animals are remarkably diverse, including approximately 86 species of vertebrate mammals, 600 species of birds, 90 species of reptiles, 37 species of amphibians, and up to 23,918 species of insects registered in the Catalogue of Life in Taiwan (TaiCOL). The wild animals currently researched by TBRI include the groups mentioned above of terrestrial vertebrates; the insects include butterflies and moths of the order Lepidoptera, as well as species of the order Diptera and family Tipulidae; the invertebrates include taxa of earthworms, land snails, slugs, freshwater shrimps and crabs, and spiders. Since our establishment, TBRI performed a systematic inventory of Taiwan's wildlife based on county and metropolitan areas. By establishing the ecological data of these wild animals, we further conducted the taxonomy, identification, and genetic diversity research of the various species, the risk assessment and control research of exotic species, further selected some of the endemic or endangered species in Taiwan for relevant research and conservation, hoping to achieve the goal of protecting the diversity of wild animals in Taiwan.