Sundarbans mangrove forest is rich in floristic composition than any other mangrove forest in the world. Extensive use of forest resources and indiscriminate felling have resulted in nearly extinction of some species. This study revealed the occurrence of only 9 economically important species belonging to 8 families which generally decreased in the interior of the forest area. Only 4 important tree species viz. Amoora cucullata, Cynometra ramiflora, Ecoecaria agallocha and Heritiera fomes were found in the interior of the area. Heritiera fomes had highest density out of these, 2914 trees per ha which was associated with Excoecaria agallocha and Amoora cucullata.