Palyno1ogica1 study in a deep core ( m depth) in the coasta1 area of the Red River De1ta, Vietnam provides evidences on vegetation change in the regiona1 area in abou!12000 years before present. This research aims to reconstruct the vegetation deve1opment and pa1eoenvironmenta1 changes in the Red River De1ta, Vietnam during the Ho1ocene. These data show !hat the region supported a Fagaceae-Coniferous, especially Quercus, Pinus và Castanopsis, simi1ar to contemporary vegetation described in Vietnam and southeast China. Tropica1 broadleaf forest dominated at the time right after BP. At the same time, Scyphiphora hydrophyl/aceae is the dominant wood species in.