Abstract:The specimens of genus Myriactula (Phaeophyta, Elachistaceae) collected from China coasts were investigated. Four species were identified, including two new species, viz. Myriactula arabica (Kuetzing) Feldmann, M. clavata (Takamatsu) Feldmann, M. zhangpuensis Luan et Ding, sp. nov. and M. haizhouensis Luan et Ding, sp. nov. The taxonomic characteristics of the new species were described in detail. The holotypes were preserved in Marine Biological Herbarium, Institute of Oceanology, Chinese Academy of Sciences.