Seven species of deep-water porter crabs of the dorippid genus Ethusina are recorded from Taiwan. Ethusina dilobotus Chen, 1993, is a new record for the island. The other six species are all new, viz., E. taiwanensis, E. alcocki, E. chenae, E. macrospina, E. insolita and E. saltator. They are distinguished from congeners by the form of the carapace teeth, proportions of the second and third pereiopods, as well as structure of the male abdomens and male first pleopods.