The Holocene coastal zone of Mekong river plain is the result of prolonged marinefluvial interaction. Lithofacies association in time and space is characterized by three depositional system tract belonged to the upper part of a sequence stratigraphy. Based on lithology should be divided 5 sedimentary types and 18 lithofacies distributed in stratigraphical column and in sea bottom varying from 25m water depth to mainland coastal area. According to