Based on the taxonomical study on materials collected from different localities in the nearshore waters of Vietnam for a long times, 6 species of amphipods be longing to Talitridae group were found, all are new for the Vietnam Sea, of those, 1 new genus Vietorchestia gen. novo and three new species Platorchestia Vietnamica sp. nov., Floresorchestia vugiaensis sp. nov., Vietorchestia quadrata sp. novo are descrilied and illustrated.