A list o f 16 species and 3 subspecies o f Ocypodidae, 1 species of Mictyridae and 30 species of Grapsidae collected from the north and west coasts of Taiwan are presented with some systematic and biogeographic notes. One species and 1 subspecies of Ocypodidae and 8 species of Grapsidae are new records from Taiwan. The geographical distribution of these species is briefly discussed in comparison with their occurrence records from China and the Ryukyu Islands.