The mangrove plantations mainly with Sonneratia apetala and Avicennia officinalis along the coastal belt and offshore islands of Bangladesh encounter a number of problems. Of these, gcomorphological changes, species succession and insect infestation arc threatening to the continuity of the established plantations under the traditional management practices. New management strategy has to be developed for the that underplanting with suitable species in the existing plantations may be a solution to the problem. Commercially important species like Excoecaria agallocha, Ileritiera fomes and Xylocarpus mekongensis appear promising for their inclusion in the proposed large scale underplanting programmme.